Where does “инертность” come from?

инертность (Russian) comes from Russian ине́ртный, from English inert, from French inerte, from Latin iners, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en — in.

инертность (Russian): sluggishness, inactivity, inertia, passivity, inertness

Definitions

  1. sluggishness, inactivity, inertia, passivity, inertness

Ancestry of “инертность”, step by step

StepLanguageWordMeaning
1Russianине́ртныйinert
2EnglishinertUnable to move or act; inanimate; In chemistry,...
3Frenchinerteinert, inactive; first-person singular present...
4Latininerswithout skill, unskilled, unskillful,...
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