'palpable' originates from Latin, specifically the word 'palpabilis,' where 'palpare' meant 'to touch gently.'

'palpabilis' transformed into the Old French word 'palpable,' and eventually became the modern English word 'palpable' through Middle English.

Initially, it meant 'capable of being touched or felt,' but over time it evolved into its current meaning of 'easily perceived or obvious.'