Where does “-ivъ” come from?

-ivъ (Proto-Slavic) comes from Proto-Slavic -vъ, from Proto-Balto-Slavic *-was, from Proto-Indo-European -wós — Creates adjectives from verb stems.

Ancestry of “-ivъ”, step by step

StepLanguageWordMeaning
1Proto-Slavic-vъFrom thematic declension of u-stem...
2Proto-Balto-Slavic*-was—
3Proto-Indo-European-wósCreates adjectives from verb stems

Words derived from “-ivъ”

Every word from Proto-Indo-European -wós →Every word from Proto-Slavic -vъ →Every word from Proto-Balto-Slavic *-was →