'gem' originates from Latin, specifically the word 'gemma,' where 'gemma' meant 'bud' or 'precious stone.'

'gemma' transformed into the Old French word 'gemme,' and eventually became the modern English word 'gem' through Middle English.

Initially, it meant 'bud' or 'precious stone,' but over time it evolved into its current meaning of 'precious or semi-precious stone.'