Found:
Morpheme
MORPHOLOGY: a term which refers to the smallest component of a word
that (a) seems to contribute some sort of meaning, or a grammatical function
to the word to which it belongs, and (b) cannot itself be decomposed into
smaller morphemes.
EXAMPLE: the English word disagreement can be decomposed
into three morphemes, viz. the prefix dis-, the base morpheme
agree, and the suffix -ment.