BECHANCE
happen, befall, bechance
(verb) happen, occur, or be the case in the course of events or by chance; “It happens that today is my birthday”; “These things befell” (Santayana)
befall, bechance, betide
(verb) become of; happen to; “He promised that no harm would befall her”; “What has become of my children?”
Source: WordNet® 3.1
Etymology 1
Verb
bechance (third-person singular simple present bechances, present participle bechancing, simple past and past participle bechanced)
(intransitive) To happen; chance.
(transitive, archaic) To happen (to); befall to.
Synonyms
• (to happen) come to pass, occur, transpire; See also happen
• (to happen to)
Etymology 2
Adverb
bechance (not comparable)
Accidentally; by chance.
Source: Wiktionary
Be*chance", adv. Etym: [Pref. be- for by + chance.]
Definition: By chance; by accident. [Obs.] Grafton.
Be*chance", v. t. & i.
Definition: To befall; to chance; to happen to.
God knows what hath bechanced them. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition