Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Serbo-Croatian -ac
Proto-Slavic *-ьcь (inherited)

Romanian Lucacevăț (affix)
Romanian Lucareț (affix)
Romanian Șiștarovăț (affix)
Serbo-Croatian svetac (affix)
Serbo-Croatian lanac (suffix)
Serbo-Croatian kukac (mention)
Serbo-Croatian klinac (mention)
Serbo-Croatian Azerbejdžanac (affix)
Serbo-Croatian Azerbajdžanac (affix)
Serbo-Croatian -čić (link)
Serbo-Croatian čamac (affix)
Serbo-Croatian punoglavac (affix)
Serbo-Croatian Crnogorac (affix)
Serbo-Croatian vatrogasac (compound)
Serbo-Croatian sivac (affix)
Serbo-Croatian obožavalac (affix)
Serbo-Croatian listavac (affix)