Where does “nonperturbing” come from?

nonperturbing (English) comes from English perturbing, from English perturb, from French perturber, from Italian perturbare, from Russian пертурбация, from Spanish perturbar, from Latin perturbō, from Latin turbo — to enclose, fence in; to grab, seize; to stir.

nonperturbing (English): That does not cause perturbation

Definitions

That does not cause perturbation

Ancestry of “nonperturbing”, step by step

Step	Language	Word	Meaning
1	English	perturbing	present participle of perturb
2	English	perturb	To disturb; to bother or unsettle; To slightly...
3	French	perturber	to disrupt, to disturb; to throw off, to fluster
4	Italian	perturbare	to upset, disturb, perturb
5	Russian	пертурбация	—
6	Spanish	perturbar	to perturb, to disturb, to bother
7	Latin	perturbō	—
8	Latin	turbo	tornado, whirlwind; crowd; I disturb, unsettle,...
9	Latin	turba	stir, disturbance, tumult, uproar, trouble; mob,...
10	Ancient Greek	τύρβη	disorder, confusion, tumult; poetic rout, revelry
11	Proto-Indo-European	twerH-	to enclose, fence in; to grab, seize; to stir

Every word from Proto-Indo-European twerH- →