Morpheme Boundaries

Section 4.3 Morpheme Boundaries

One of the trickiest aspects of morpheme analysis is determining where morphemes begin and end—especially with words borrowed from other languages. Many English words came from Latin, Greek, and French, bringing with them pieces that look like affixes but don’t function as morphemes for modern English speakers.

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Before we address these tricky cases, let’s practice the correct process for analyzing morphemes in straightforward words.

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Morpheme Analysis.

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When analyzing a word’s morphemes, work systematically: identify the base (free morpheme), then examine what’s attached to it. Here are three examples showing the step-by-step process.

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Example 1: "unhappy".

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Start by finding the free morpheme—the part that can stand alone as a word:

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happy is a word in English ✓
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Now check what’s attached:

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un- appears before happy; this is the prefix meaning "not"
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un- is a bound morpheme (it cannot stand alone)
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Result: un- (bound) + happy (free) = 2 morphemes

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Example 2: "rethinking".

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Find the free morpheme:

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think is a word in English ✓
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Check what’s attached before the base:

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re- appears before think; this is the prefix meaning "again"
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re- is a bound morpheme
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Check what’s attached after the base:

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-ing appears after think; this suffix forms the present participle
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-ing is a bound morpheme
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Result: re- (bound) + think (free) + -ing (bound) = 3 morphemes

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Example 3: "carelessness".

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Find the free morpheme:

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care is a word in English ✓
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Check for prefixes:

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None present
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Check for suffixes (work from the end inward):

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-ness appears at the end; this suffix forms nouns meaning "state of"
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-less appears between care and -ness; this suffix means "without"
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Both are bound morphemes
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Result: care (free) + -less (bound) + -ness (bound) = 3 morphemes

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Incorrect Morpheme Analysis.

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Now let’s look at common mistakes in morpheme analysis. The fundamental principle to remember is:

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A word can only be divided into morphemes if the base is a word in modern English.

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This rule keeps our analysis grounded in what speakers actually know, rather than what historical linguists can reconstruct. Morphemes are psychological units—pieces that speakers recognize as meaningful. When you hear “unhappy”, you recognize both “un-” and “happy” as meaningful parts because “happy” is a word you know.

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Type 1: Non-Existent Bases

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Some words look like they contain familiar affixes, but the remaining "base" isn’t actually a word in English.

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“Ugly” ≠ ug + -ly

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Ug is not a word in English ✗
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One morpheme
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“Pretty” ≠ pret + -ty

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Pret is not a word in English ✗
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One morpheme
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Type 2: Historical Parts That Have Fused

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Many English words came from Latin, Greek, or French with internal structure that no longer functions for modern speakers. Consider the word “receive”. It begins with “re-”, which often means "again" in English (rewrite, rebuild, reconsider). And the rest of the word looks like it might be “ceive”. But ask yourself: Can you “ceive” something? Is “ceive” a word? Unless you’re a Latin scholar who knows that “capere” meant "to take," the answer is no.

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“Deceive” ≠ de- + ceive

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Ceive is not a word in English ✗
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One morpheme
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“Predict” ≠ pre- + dict

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Dict is not a word in English (it’s Latin for "say") ✗
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One morpheme
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“Transport” ≠ trans- + port

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Port in the sense of "carry" is not a word in English ✗
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One morpheme
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Type 3: Coincidental Resemblance

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Sometimes a word contains a sequence of sounds that happens to match an existing word or affix, but the word’s meaning has nothing to do with those parts. The word wasn’t built from those pieces.

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“Understand” ≠ under + stand

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Although under and stand are both English words, understand doesn’t mean "to stand under something"
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The word came into English as a unit with its own meaning
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One morpheme
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“Carpet” ≠ car + pet

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Although car and pet are both English words, a carpet isn’t a pet for your car!
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One morpheme
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“Breakfast” = break + fast

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This one IS a compound—it literally means "breaking the fast" (the overnight period without eating)
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Two morphemes
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The test: Does the word’s meaning derive from combining the meanings of the parts? If not, it’s a single morpheme regardless of what sequences it contains.

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Borderline Cases.

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Some words present genuine challenges:

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Words with archaic bases: If the base existed in Old English but not modern English, treat the word as one morpheme.

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overwhelm (whelm is archaic) = 1 morpheme
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unkempt (kempt is archaic) = 1 morpheme
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Latin/Greek borrowings: If the base comes from Latin or Greek and isn’t an English word, treat it as one morpheme.

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construct, instruct, destruct = 1 morpheme each
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receive, perceive, conceive = 1 morpheme each
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Additional Morphemes on Borrowed Words.

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Even when a borrowed word is a single morpheme, English speakers can still add English affixes to it. Those affixes count as separate morphemes.

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constructed = construct + -ed (2 morphemes)
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receiving = receive + -ing (2 morphemes)
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destruction = This is trickier—destruction came into English as a complete word from Latin, so it’s 1 morpheme. But destructive in modern English is destruction minus -ion plus -ive? No—both destruction and destructive are borrowed as units. However, destructively = destructive + -ly (2 morphemes) because -ly is a productive English suffix added to the borrowed word.
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