Where does “in situ” come from?

in situ (English) comes from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

in situ (English): in its original position or place

Definitions

  1. in its original position or place

Ancestry of “in situ”, step by step

StepLanguageWordMeaning
1Latinînin, at, on, upon, from (space)
2Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
3Proto-Italicenin
4Proto-Indo-Europeanh₁énin
Every word from Proto-Indo-European h₁én →Every word from Proto-Italic en →Every word from Latin en →