Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Armenian
խօսք
←
Proto-Indo-Iranian
*wā́kš
(derived)
←
Undetermined
(mention)
←
Old Armenian
խաւսք
(mention)
→
Armenian
խոսք
(inherited)
→
Old Armenian
խօսիմ
(mention)