Where does “uninquiringly” come from?

uninquiringly (English) comes from English uninquiring, from English inquiring, from English inquire, from Latin inquiro, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en — in.

Ancestry of “uninquiringly”, step by step

StepLanguageWordMeaning
1EnglishuninquiringNot inquiring; thus, lacking curiosity
2Englishinquiringpresent participle of inquire; inquiry;...
3EnglishinquireTo ask; To make an inquiry or an investigation;...
4LatininquiroI seek after, search for, inquire into something;...
5Latinīn-un-, non-, not
6Latinînin, at, on, upon, from (space)
7Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
8Proto-Italicenin
9Proto-Indo-Europeanh₁énin
Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Proto-Italic en