'Well-nigh' definitions:

Definition of 'well-nigh'

From: WordNet
adverb
(of actions or states) slightly short of or not quite accomplished; all but; "the job is (just) about done"; "the baby was almost asleep when the alarm sounded"; "we're almost finished"; "the car all but ran her down"; "he nearly fainted"; "talked for nigh onto 2 hours"; "the recording is well-nigh perfect"; "virtually all the parties signed the contract"; "I was near exhausted by the run"; "most everyone agrees" [syn: about, almost, most, nearly, near, nigh, virtually, well- nigh]

Definition of 'Well-nigh'

From: GCIDE
  • Well-nigh \Well"-nigh`\, adv. Almost; nearly. --Chaucer. [1913 Webster]