Where does “подружній” come from?

подружній (Ukrainian) comes from Ukrainian подру́жжя, from Ukrainian -я́, from Russian -ие, from Proto-Slavic -ьje — Denominal, forming collective nouns; Deverbal ,...

подружній (Ukrainian): marital, matrimonial, conjugal, connubial of or relating to a married couple

Definitions

marital, matrimonial, conjugal, connubial of or relating to a married couple

Ancestry of “подружній”, step by step

Step	Language	Word	Meaning
1	Ukrainian	подру́жжя	married couple, husband and wife
2	Ukrainian	-я́	Noun-forming diminutive suffix used after a soft (palatalized) consonant
3	Russian	-ие	Abstract noun suffix; forms part of larger...
4	Proto-Slavic	-ьje	Denominal, forming collective nouns; Deverbal ,...

Every word from Proto-Slavic -ьje →Every word from Russian -ие →Every word from Ukrainian -я́ →