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A prefix from the latin preposition, , akin to Gr. or signifying , , . Hence, in composition, it signifies , . In some words, it intensifies the meaning; in others, it has little affect on the signification. It becomes ef- before f, as in effuse. The form e- occurs instead of ex- before b, d, g, l, m, n, r, and v, as in ebullient, emanate, enormous, etc. In words from the French it often appears as es-, sometimes as s- or é-; . Ex-, prefixed to names implying office, station, condition, denotes that the person formerly held the office, or is out of the office or condition now; . The Greek form becomes in English, as in arch; becomes , as in centric.