Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
cheartach
→
Faroese
Kjartan
(compound)
→
Icelandic
Kjartan
(compound)
→
Icelandic
Mýrkjartan
(compound)