OBVIATE
debar, forefend, forfend, obviate, deflect, avert, head off, stave off, fend off, avoid, ward off
(verb) prevent the occurrence of; prevent from happening; “Let’s avoid a confrontation”; “head off a confrontation”; “avert a strike”
obviate, rid of, eliminate
(verb) do away with
Source: WordNet® 3.1
Etymology
Verb
obviate (third-person singular simple present obviates, present participle obviating, simple past and past participle obviated)
(transitive) To anticipate and prevent or bypass (something which would otherwise have been necessary or required).
(transitive) To avoid (a future problem or difficult situation).
Usage notes
• Garner's Modern American Usage (2009) notes that phrases like obviate the necessity or obviate the need are sometimes considered redundant, but "these phrases are not redundancies, for the true sense of obviate the necessity is 'to prevent the necessity (from arising),' hence to make unnecessary."
Source: Wiktionary
Ob"vi*ate, v. t. [imp. & p. p. Obviated; p. pr. & vb. n. Obviating.]
Etym: [L. obviare; ob (see Ob-) + viare to go, fr. via way. See
Voyage.]
1. To meet in the way. [Obs.]
Not to stir a step to obviate any of a different religion. Fuller.
2. To anticipate; to prevent by interception; to remove from the way
or path; to make unnecessary; as, to obviate the necessity of going.
To lay down everything in its full light, so as to obviate all
exceptions. Woodward.
Source: Webster’s Unabridged Dictionary 1913 Edition