Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Armenian
երդնում
←
Proto-Indo-European
*ertu-
(derived)
←
Ossetian
ард
(cognate)
←
Old Armenian
(mention)
←
Old Armenian
(mention)
→
Ancient Greek
θρόος
(cognate)
→
Old Armenian
երդումն
(suffix)