prefix (also e- before some consonants, ef- before f)
1 forming verbs meaning: a out, forth (exclude; exit). b upward (extol). c thoroughly (excruciate). d bring into a state (exasperate). e remove or free from (expatriate; exonerate).
2 forming nouns from titles of office, status, etc., meaning 'formerly' (ex-convict; ex-president; ex-wife).
Etymology: L f. ex out of
2.
prefix out (exodus).
Etymology: Gk f. ex out of
Useful english dictionary. 2012.