Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
bevañ
←
Welsh
byw
(cognate)
←
Scottish Gaelic
bi
(cognate)
←
Proto-Indo-European
*gʷeyh₃-
(derived)
←
Cornish
bewa
(cognate)