ex-

ex- (also e-; ef- before f) ► PREFIX 1) out: exclude. 2) upward: extol. 3) thoroughly: excruciate. 4) referring to removal or release: excommunicate. 5) forming verbs which indicate inducement of a state: exasperate. 6) referring to a former state: ex-husband.

ORIGIN Latin ex 'out of' .