Where does “babyspeak” come from?

babyspeak (English) comes from English baby, from Middle English baby, from Middle English -y, from Old English -iġ, from Proto-West Germanic -g, from Proto-Germanic -gaz, from Proto-Indo-European -ḱos — -y, -ic.

babyspeak (English): The infantile protolanguage of babies; The...

Definitions

  1. The infantile protolanguage of babies; The...

Ancestry of “babyspeak”, step by step

babyspeak traces back through two separate lines of ancestry.

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

via English speak

StepLanguageWordMeaning
1EnglishspeakTo communicate with one's voice, to say words out...
2Middle Englishspeke
3Old EnglishspecanAlternative form of sprecan; to speak
4Old Englishsprecanto speak, talk
5Proto-West Germanic*sprekanto speak
6Proto-Germanicsprekanąto speak, to make a noise
7Proto-Indo-Europeanspreg-to make a sound, speak; to make a sound, utter,...
Every word from Proto-Indo-European -ḱosEvery word from Old English -iġEvery word from Middle English -y