'equivocation' originates from Latin, specifically the word 'aequivocatio,' where 'aequi-' meant 'equal' and 'vocare' meant 'to call.'

'aequivocatio' transformed into the Old French word 'equivocacion,' and eventually became the modern English word 'equivocation' through Middle English.

Initially, it meant 'calling something by the same name,' but over time it evolved into its current meaning of 'using ambiguous language to conceal the truth.'