'impregnate' originates from Latin, specifically the word 'impregnatus,' where 'in-' meant 'into' and 'praegnare' meant 'to be pregnant.'

'impregnatus' transformed into the French word 'impregner,' and eventually became the modern English word 'impregnate' through Middle English.

Initially, it meant 'to make pregnant,' but over time it evolved to also mean 'to fill or saturate thoroughly.'