em-
{{
11}}
em- (1) from French assimilation of en- to following labial (
see EN- (
Cf. en-) (
1)).
Also a prefix used to form verbs from adjectives and nouns.
{{
12}}
em- (2) representing L. ex- assimilated to following -m- (
see EX- (
Cf. ex-)).
Etymology dictionary.
2014.