Where does “dereń” come from?

dereń (Polish) comes from Ukrainian дерен, from Proto-Slavic dьrnъ, from Proto-Slavic dьrati, from Proto-Indo-European der- — to split, to separate; to tear, to crack, to...

dereń (Polish): cornel, dogwood, any tree or shrub of genus...

Definitions

cornel, dogwood, any tree or shrub of genus...

Ancestry of “dereń”, step by step

Step	Language	Word	Meaning
1	Ukrainian	дерен	cornel, dogwood; sod
2	Proto-Slavic	dьrnъ	piece, chunk; toft, sod
3	Proto-Slavic	dьrati	to tear, to flay
4	Proto-Indo-European	der-	to split, to separate; to tear, to crack, to...

Every word from Proto-Indo-European der- →Every word from Proto-Slavic dьrati →Every word from Proto-Slavic dьrnъ →