Where does “dullen” come from?

dullen (English) comes from English en, from French en, from Middle French en, from Old French en, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

dullen (English): To make dull or duller; to dull; To become dull...

Definitions

  1. To make dull or duller; to dull; To become dull...

Ancestry of “dullen”, step by step

dullen traces back through two separate lines of ancestry.

via English en

StepLanguageWordMeaning
1EnglishenAbbreviation of English; The name of the...
2Frenchenin; to; by
3Middle Frenchenon; on to
4Old Frenchenin; inside; on; upon; in
5Latinînin, at, on, upon, from (space)
6Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
7Proto-Italicenin
8Proto-Indo-Europeanh₁énin

via English dull

StepLanguageWordMeaning
1EnglishdullLacking the ability to cut easily; not sharp;...
2Middle Englishdull
3Old Englishdolfoolish
4Proto-West Germanic*dol
5Proto-Germanicdulazconfused, stunned; foolish, misled, mad
6Proto-Germanicdwalazconfused, stunned; foolish, misled, mad
7Proto-Indo-Europeandʰwel-
Every word from Proto-Indo-European h₁énEvery word from Proto-Italic enEvery word from Latin en