'replenisher' originates from Middle English, specifically the word 'replenisshen,' where 're-' meant 'again' and 'plenisshen' meant 'to fill.'

'replenisshen' transformed into the modern English word 'replenish,' and eventually became 'replenisher' as a noun form.

Initially, it meant 'to fill again,' and this meaning has largely remained the same in modern usage.