Where does “сёртук” come from?

сёртук (Russian) comes from French surtout, from French sûr, from Middle French sur, from Old French seür, from Latin super, from Latin eks-uper, from Proto-Indo-European upéri, from Proto-Indo-European upér.

Ancestry of “сёртук”, step by step

StepLanguageWordMeaning
1Frenchsurtoutabove all; especially; surtout
2Frenchsûrsure, certain; trustworthy; safe
3Middle Frenchsur
4Old FrenchseürAlternative form of seur; sure
5Latinsuper"accusative" above, on the top of, upon;...
6Latineks-uper
7Proto-Indo-Europeanupérialternative reconstruction of *upér
8Proto-Indo-Europeanupérabove; over
9Proto-Indo-Europeanupóunder, below
10Proto-Indo-Europeanh₃ewp-

Words derived from “сёртук

Every word from Proto-Indo-European h₃ewp-
сёртук — Etymology, Origin & Word History | Etymology Explorer