'babyfied' originates from English, specifically from the noun 'baby' combined with the verb-forming suffix '-fy' (via '-fied' for past forms), where '-fy' meant 'to make' (i.e., 'make into a baby/childlike form').

'babyfied' developed by combining the modern English noun 'baby' (16th century origin) with the productive suffix '-fy' (from Latin '-ficare' through Old French/English), forming the verb 'babyfy' and then the past/past-participle form 'babyfied'.

Initially it literally meant 'made into or like a baby' (physical or visual), but it has broadened to include figurative senses such as 'infantilized' or 'dumbed down' (made simpler or less mature).