Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Armenian
հակ
←
Proto-Indo-European
*pog-
(inherited)
←
Proto-Indo-European
*peg-
(mention)
←
Latin
pectus
(cognate)
←
Russian
пах
(cognate)
←
Sanskrit
पक्ष
(cognate)
→
Armenian
հակա-
(derived)
→
Armenian
հակ-
(derived)
→
Armenian
հակ
(inherited)