'feast' originates from Old French, specifically the word 'feste' or 'feste' (also spelled 'fest'), ultimately from Latin 'festum' meaning 'festival' or 'feast'.

'feast' changed from Old French 'feste' and Middle English forms such as 'fest' or 'feest' and eventually became the modern English word 'feast'.

Initially, it meant 'a festival or public celebration' (often involving a meal), and over time it retained that sense while also extending figuratively to mean 'an abundant or delightful supply' (e.g., 'a feast for the eyes').