'aerophagist' originates from Greek, specifically the word 'aerophagia,' where 'aero-' meant 'air' and 'phagia' meant 'eating or swallowing.'

'aerophagia' transformed into the English word 'aerophagist' to describe a person with the habit of swallowing air.

Initially, it meant 'swallowing air,' but over time it evolved into its current meaning of 'a person who habitually swallows air.'