'intragastric' originates from Latin, specifically the prefix 'intra-' meaning 'within' and 'gastric' from 'gaster' meaning 'stomach'.

'Intragastric' was formed by combining the Latin prefix 'intra-' with the Greek root 'gaster', eventually becoming the modern English word 'intragastric'.

Initially, it meant 'within the stomach', and this meaning has largely remained the same in modern usage.