'amphibiety' originates from Greek, specifically the word 'amphibios,' where 'amphi-' meant 'both' and 'bios' meant 'life.'

'amphibios' transformed into the Latin word 'amphibius,' and eventually became the modern English word 'amphibiety' through Middle English.

Initially, it meant 'having a dual nature or existence,' and this meaning has largely remained the same in modern usage.