Where does “сенокосец” come from?

сенокосец (Bulgarian) comes from Russian косец, from Russian -е́ц, from Proto-Slavic -ьcь, from Lithuanian -ikas, from Proto-Indo-European -iḱos — -y, -ic.

сенокосец (Bulgarian): opilione, harvestman, daddy longlegs arachnid

Definitions

  1. opilione, harvestman, daddy longlegs arachnid

Ancestry of “сенокосец”, step by step

сенокосец traces back through two separate lines of ancestry.

via Russian косец

StepLanguageWordMeaning
1Russianкосецmower
2Russian-е́цer, -an, -ian (nominal suffix for agent nouns or nouns designating persons)
3Proto-Slavic-ьcьForms diminutives from nouns; Forms nouns from...
4Lithuanian-ikas—
5Proto-Indo-European-iḱos-y, -ic

via Bulgarian сено

StepLanguageWordMeaning
1Bulgarianсеноhay
2Proto-Slavicsěnohay
3Proto-Balto-Slavicśáina—
4Proto-Indo-European(s)ḱeh₁y-to shine, shimmer
Every word from Proto-Indo-European -iḱos →Every word from Russian -е́ц →Every word from Proto-Slavic -ьcь →