'post' originates from Latin, specifically the word 'postis,' where 'post-' meant 'after' or 'behind.'

'postis' transformed into the Old French word 'poste,' and eventually became the modern English word 'post' through Middle English.

Initially, it meant 'a piece of timber or metal fixed firmly in an upright position,' but over time it evolved into its current meaning of 'to send or publish something.'