'indigestive' originates from Latin, specifically the word 'indigestivus,' where 'in-' meant 'not' and 'digestivus' meant 'digestive.'

'indigestivus' transformed into the French word 'indigestif,' and eventually became the modern English word 'indigestive' through Middle English.

Initially, it meant 'not able to be digested,' but over time it evolved into its current meaning of 'causing or relating to indigestion.'