'myth-maker' originates from English, specifically a compound of 'myth' and 'maker'. 'Myth' ultimately comes from Greek 'mythos' meaning 'word, story', and 'maker' comes from Old English 'macian' (to make).

'myth' passed from Greek 'mythos' into Latin/Medieval Latin as 'mythus' and into Middle English (via Old French 'mythe' or directly), while 'maker' developed from Old English 'macian'/'macere'; the compound 'myth-maker' is a Modern English formation combining these elements.

Initially the components referred literally to 'story' and 'one who makes', so the compound simply meant 'one who makes myths'; over time it has retained that sense but also acquired figurative and pejorative senses such as 'one who invents false narratives' or 'a shaper of public perceptions'.