Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ulcha
←
Old Irish
ulcha
(inherited)
→
Ancient Greek
πυλεών
(cognate)
→
Ancient Greek
πύλιγξ
(cognate)