Where does “худенький” come from?

худенький (Russian) comes from Russian худо́й, from Proto-Slavic xudъ, from Proto-Indo-European ksowdós, from Proto-Indo-European k⁽ʷ⁾sewd-, from Proto-Indo-European kes- — to scrape, comb.

Ancestry of “худенький”, step by step

StepLanguageWordMeaning
1Russianхудо́йthin
2Proto-Slavicxudъsmall, little, weak
3Proto-Indo-Europeanksowdós—
4Proto-Indo-Europeank⁽ʷ⁾sewd-to crush, disperse; to disintegrate
5Proto-Indo-Europeankes-to scrape, comb
Every word from Proto-Indo-European kes- →Every word from Proto-Indo-European k⁽ʷ⁾sewd- →Every word from Proto-Indo-European ksowdós →