ab-Wiktionary 原文1词源 1演变路径（由近及远）英语借自 ←拉丁语 ab-继承自 ←原始意大利语族语 *ap继承自 ←原始印欧语 *h₂epó词源说明Borrowed from Latin ab-, from Proto-Indo-European *h₂epo (“off, away”) (English off, of). Doublet of apo- and off-.释义（英文）前缀 Prefix(no longer productive) From.(no longer productive) Away from; outside of.词族同源异形词（2）apo-off-2词源 2释义（英文）前缀 Prefix(physics) Used in the names of certain units in the centimeter-gram-second system.