'argotic' originates from French, specifically the word 'argot', where 'argot' meant 'cant' or 'slang'.

'argotic' was formed in English from the noun 'argot' + the adjectival suffix '-ic' (from Greek/Latin formation patterns). The noun 'argot' was borrowed into English from French 'argot' (Middle French/Old French) and then the adjective 'argotic' was derived.

Initially, 'argot' meant 'cant' or 'specialized slang'; over time the adjective 'argotic' came to mean 'pertaining to or characteristic of such cant/slang' with little change in core meaning.