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

→ Czech pýr (inherited)
→ Lower Sorbian pyrje (inherited)
→ Macedonian пиреј (inherited)
→ Polish perz (inherited)
→ Polish perzyna (inherited)
→ Russian пырей (inherited)
→ Slovene pira (inherited)
→ Old Polish pyrz (inherited)