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

→ Persian پشت (inherited)
→ Northern Kurdish pişt (inherited)
→ Pashto پښتون (cognate)
→ Old Armenian պաշտպան (cognate)
→ Old Armenian փուշտիպան (cognate)