Where does “adult baby” come from?

adult baby (English) comes from English adult, from French adulte, from Latin adultus, from Latin adolesco, from Latin adoleō, from Latin ad-, from Latin īn-, from Latin în — in.

adult baby (English): A person who has a paraphilia involving...

Definitions

  1. A person who has a paraphilia involving...

Ancestry of “adult baby”, step by step

adult baby traces back through two separate lines of ancestry.

via English adult

StepLanguageWordMeaning
1EnglishadultA fully grown human or animal; A person who has...
2Frenchadulteadult
3Latinadultusmagnified or piled up with for sacrifice; burned,...
4LatinadolescoI grow up, become an adult; I mature; I increase...
5Latinadoleōto emit an odor, smell
6Latinad-to; usually prefixed to verbs, in which cases it...
7Latinīn-un-, non-, not
8Latinînin, at, on, upon, from (space)
9Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
10Proto-Italicenin
11Proto-Indo-Europeanh₁énin

via English baby

StepLanguageWordMeaning
1EnglishbabyA very young human, particularly from birth to a...
2Middle EnglishbabyA child or baby
3Middle English-yDesignates an adjective, in many cases formed by...
4Old English-iġ-y, -ic
5Proto-West Germanic-gForms adjectives from nouns and verbs with a...
6Proto-Germanic-gaz-y
7Proto-Indo-European-ḱos-y, -ic
Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Latin ad-