ob-
variation
cの前: oc-
fの前: of-
pの前: op-
#prefix
1. denoting exposure or openness: obverse
露出・開放性を表す
expressing meeting or facing: observe
会議や立会を表現する
2. denoting opposition, hostility, or resistance: obstacle
反対・敵意・抵抗を表す
denoting hindrance, blocking, or concealment: obviate | obliterate
妨害・遮断・隠蔽を表す
3. denoting extensiveness, finality, or completeness: obsolete | obdurate
広大さ、最終的であること、完全であることを表す
4. (in modern technical words) inversely; in a direction or manner contrary to the usual: obconical
(現代の技術的な用語で)逆の; 方向・方法が普通とは対局にある;
ORIGIN
from Latin ob ‘towards, against, in the way of’.
USAGE
Ob- occurs mainly in words of Latin origin. It is also found assimilated in the following forms: oc- before c (occasion); of- before f (offend); op- before p (oppress).