'gluttonous' originates from Latin, specifically the word 'gluttōnōsus,' where 'gluttō' meant 'to swallow or devour.'

'gluttōnōsus' transformed into the Old French word 'gloton,' and eventually became the modern English word 'gluttonous' through Middle English.

Initially, it meant 'to swallow or devour,' but over time it evolved into its current meaning of 'excessively greedy or insatiable.'