Where does “immemorially” come from?

immemorially (English) comes from English immemorial, from French immémorial, from French in-, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

immemorially (English): In an immemorial manner, from time immemorial

Definitions

  1. In an immemorial manner, from time immemorial

Ancestry of “immemorially”, step by step

StepLanguageWordMeaning
1EnglishimmemorialThat is beyond memory; ancient; Ancient beyond...
2Frenchimmémorialimmemorial, age-old
3Frenchin-in-; un-
4Latinīn-un-, non-, not
5Latinînin, at, on, upon, from (space)
6Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
7Proto-Italicenin
8Proto-Indo-Europeanh₁énin
Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Proto-Italic en