Where does “cieniusieńki” come from?

cieniusieńki (Polish) comes from Polish cieniusi, from Polish cienki, from Proto-Slavic tьnъkъ, from Proto-Indo-European ténh₂us, from Proto-Indo-European tenh₂-, from Proto-Indo-European ten- — to stretch, to extend.

Ancestry of “cieniusieńki”, step by step

StepLanguageWordMeaning
1Polishcieniusi
2Polishcienkithin; inept; mediocre; weak; lame
3Proto-Slavictьnъkъthin
4Proto-Indo-Europeanténh₂usthin
5Proto-Indo-Europeantenh₂-to stretch, to extend
6Proto-Indo-Europeanten-to stretch, to extend

Words derived from “cieniusieńki

Every word from Proto-Indo-European ten-Every word from Proto-Indo-European tenh₂-Every word from Proto-Indo-European ténh₂us