Meaning

verb keep busy with

adjective actively or fully engaged or occupied

adjective overcrowded or cluttered with detail

originFrom Middle English bisy, busie, from Old English bisiġ (“busy, occupied, diligent”), from Proto-West Germanic *bisīg (“diligent; zealous; busy”). Cognate with Saterland Frisian biesich (“active, diligent, hard-working, industrious”), Dutch bezig (“busy”), Low German besig (“busy”). The spelling with ⟨u⟩ represents the pronunciation of the West Midland and Southern dialects while the Modern…

Etymology from Wiktionary, CC BY-SA 3.0