Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*h₃ewp-s-
→
Irish
uachtar
(derived)
→
Scottish Gaelic
uachdar
(derived)
→
Manx
eaghtyr
(derived)