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

→ Armenian թեր (mention)
→ Old Armenian թերթ (mention)
→ Old Armenian թռչիմ (mention)
→ Old Armenian թեր (mention)
→ Old Armenian թիթեռն (mention)