'insinuate' originates from Latin, specifically the word 'insinuare,' where 'in-' meant 'into' and 'sinus' meant 'curve or fold.'

'insinuare' transformed into the French word 'insinuer,' and eventually became the modern English word 'insinuate' through Middle English.

Initially, it meant 'to introduce or insert oneself,' but over time it evolved into its current meaning of 'to suggest or hint slyly.'