'emblazon' originates from Middle French, specifically the word 'blason,' where 'blason' meant 'shield' or 'coat of arms.'

'blason' transformed into the English word 'blazon,' and eventually became the modern English word 'emblazon' through Middle English.

Initially, it meant 'to describe or depict heraldically,' but over time it evolved into its current meaning of 'to decorate or display prominently.'