| 释义 | | epi Also opi.
 Near, at, against.
 [Pokorny epi 323.]ob-, from Latin ob, ob‑, before, to, against.epi-, from Greek epi, on, over, at.opisthobranch, opisthognathous, from Greek opisthen, behind, at the back.Zero-grade form *pi, on, in Greek piezein  (see sed-).oblast, from Russian oblast', oblast, from Old Church Slavonic ob, on.Reduced prefixal form *op‑ in *op-wer-yo‑  (see wer-4).duopsony, opsonin, from Greek *ops, extra on the side, with, in noun opson, condiment, cooked food.
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