- the use in inflection or derivation of an allomorph that is not related in form to the primary allomorph of a morpheme, as the use of better as the comparative of good.
Origin of suppletion
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- the use of an unrelated word to complete the otherwise defective paradigm of a given word, as for example the use of went for the past tense of go
C14: from Medieval Latin supplētiō a completing, from Latin supplēre to supply 1
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