Would
来自Big Physics
Old English wolde, past of wyllan (see will1).
wiktionary
From Old English wolde, past tense of willan.
etymonline
would
Old English wolde, past tense and past subjunctive of willan "to will" (see will (v.)). Would-be (adj.) "wishing to be, vainly pretending" is first recorded c. 1300.