Word Study
ante-
CIDE DICTIONARY
ante-,
A Latin preposition and prefix; akin to Gr. 'anti` , Skr. anti, Goth. and-, anda- (only in comp.), AS. and-, ond-, (only in comp.: cf. Answer, Along), G. ant-, ent- (in comp.). The Latin ante is generally used in the sense of before, in regard to position, order, or time, and the Gr. 'anti` in that of opposite, or in the place of. [1913 Webster]
OXFORD DICTIONARY
ante-, prefix forming nouns and adjectives meaning 'before, preceding' (ante-room; antenatal; ante-post).
Etymology
L ante (prep. & adv.), = before
For further exploring for "ante-" in Webster Dictionary Online