Where does “infantilely” come from?

infantilely (English) comes from English infantile, from Latin infantilis, from Latin īnfāns, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

infantilely (English): In an infantile manner; childishly

Definitions

  1. In an infantile manner; childishly

Ancestry of “infantilely”, step by step

infantilely traces back through two separate lines of ancestry.

via English infantile

StepLanguageWordMeaning
1EnglishinfantilePertaining to infants; Childish; immature
2Latininfantilispertaining to an infant; infantile
3Latinīnfānsspeechless, inarticulate
4Latinīn-un-, non-, not
5Latinînin, at, on, upon, from (space)
6Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
7Proto-Italicenin
8Proto-Indo-Europeanh₁énin

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Proto-Italic en