/ ˈmɔːfiːm; NAmE ˈmɔːrf-/ noun
( grammar ) the smallest unit of meaning that a word can be divided into :
The word 'like' contains one morpheme but 'un-like-ly' contains three.
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WORD ORIGIN
late 19th cent.: from French morphème , from Greek morphē form, on the pattern of French phonème phoneme.