Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Bulgarian качка
Bulgarian ка́чам (affix)
Bulgarian -ка (affix)
Bulgarian кача́лка (link)
Bulgarian качу́н (link)
Bulgarian качу́нка (link)
Bulgarian ка́ца (affix)
Bulgarian -ка (affix)
Bulgarian кад (link)
Bulgarian ката́я (link)
Czech kačka (cognate)
Polish kaczka (cognate)
Russian ка́чка (cognate)
Russian ка́чка (borrowed)
Proto-Slavic *kačьka (inherited)
Ukrainian ка́чка (cognate)