Where does “росточек” come from?

росточек (Russian) comes from Russian росток, from Russian рост, from Old East Slavic ростъ, from Proto-Slavic orstъ, from Proto-Slavic slàva, from Proto-Indo-European ḱlew-, from Proto-Indo-European ḱel- — to cover; to incline.

Ancestry of “росточек”, step by step

StepLanguageWordMeaning
1Russianростокsprout; shoot
2Russianростgrowth; growth, increase, rise; height, stature
3Old East Slavicростъ—
4Proto-Slavicorstъgrowth
5Proto-Slavicslàvafame; glory; glory, fame
6Proto-Indo-Europeanḱlew-to hear
7Proto-Indo-Europeanḱel-to cover; to incline
Every word from Proto-Indo-European ḱel- →Every word from Proto-Indo-European ḱlew- →Every word from Proto-Slavic slàva →