Where does “серпуха” come from?

серпуха (Russian) comes from Russian серп, from Proto-Slavic sьrpъ, from Proto-Balto-Slavic sírpas, from Proto-Indo-European sēr-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

серпуха (Russian): saw-wort (Serratula gen. et spp.)

Definitions

  1. saw-wort (Serratula gen. et spp.)

Ancestry of “серпуха”, step by step

StepLanguageWordMeaning
1Russianсерпsickle; crescent
2Proto-Slavicsьrpъsickle
3Proto-Balto-Slavicsírpas—
4Proto-Indo-Europeansēr-to flow
5Proto-Indo-Europeanser-to flow; to guard; to bind, to tie together
Every word from Proto-Indo-European ser- →Every word from Proto-Indo-European sēr- →Every word from Proto-Balto-Slavic sírpas →