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

→ Bulgarian пара (mention)
→ Czech pára (mention)
→ Czech odpar (mention)
→ Hungarian párol (mention)
→ Macedonian пареа (mention)
→ Polish para (mention)
→ Russian пар (inherited)
→ Serbo-Croatian para (mention)
→ Serbo-Croatian пара (mention)
→ Ukrainian пара (mention)