Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Armenian
երկան
←
Proto-Indo-European
(inherited)
←
Proto-Indo-European
*gʷréh₂wō
(mention)
→
Armenian
երկան
(derived)
→
Armenian
երկանք
(mention)
→
Russian
жёрнов
(cognate)
→
Old Armenian
երկանաքար
(compound)