ex-
/ɛks/(also e-) Usage
prefix
1Out: exclude excite
2Upward: extol
3Thoroughly: excruciate
4Denoting removal or release: excommunicate exculpate
5Forming verbs which denote inducement of a state: exasperate
6Forming nouns which denote a former state: ex-husband ex-convict
Usage
Ex- is also found assimilated as ef- before f.
Origin
From Latin ex 'out of'.