obviate

动词 obviate:

1. do away with
   同义词：rid of, eliminate
2. prevent the occurrence of; prevent from happening
   同义词：debar, deflect, avert, head off, stave off, fend off, avoid, ward off

ob.vi.ate

v.tr.（及物动词）
ob.vi.at.ed,ob.vi.at.ing,ob.vi.ates
To anticipate and dispose of effectively; render unnecessary.See Synonyms at prevent
消除，排除：有效地消除和排除；放弃不必要的东西参见 prevent

来源：
Latin obvi3re obvi3t- [to hinder]
拉丁语 obvi3re obvi3t- [延缓]
from obvius [in the way] * see obvious
源自 obvius [在路当中] *参见 obvious

【引伸】
ob.via.tion
n.（名词）
ob.via.tor
n.（名词）