Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Slavic *-nikъ

→ Czech -ník (inherited)
→ Polish -nik (inherited)
→ Romanian potrivnic (affix)
→ Romanian sfetnic (affix)
→ Romanian bolniță (affix)
→ Romanian becisnic (affix)
→ Romanian ceașnic (mention)
→ Romanian vornic (affix)
→ Serbo-Croatian -nik (inherited)
→ Slovak -ník (inherited)