'epoch' originates from Greek, specifically the word 'epokhē,' where 'epi-' meant 'upon' and 'ekhein' meant 'to hold.'

'epokhē' transformed into the Latin word 'epocha,' and eventually became the modern English word 'epoch' through Old French.

Initially, it meant 'a fixed point in time,' but over time it evolved into its current meaning of 'a significant period in history.'