Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
céir
←
Scottish Gaelic
cèir
(cognate)
←
Latin
cēra
(derived)
←
Old Irish
céir
(inherited)
→
Welsh
cwyr
(cognate)
→
Scottish Gaelic
cèir
(cognate)