-eme

1.
a suffix used principally in linguistics to form nouns with the sense “significant contrastive unit,” at the level of language specified by the stem:
morpheme; tagmeme.
Origin
extracted from phoneme
British Dictionary definitions for -eme

-eme

suffix
1.
(linguistics) indicating a minimal distinctive unit of a specified type in a language: morpheme, phoneme
Word Origin
C20: via French, abstracted from phoneme
Word Origin and History for -eme

in linguistics, noted as an active suffix and word-formation element from 1953; from French -ème "unit, sound," from phonème (see phoneme).