Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
clawr
←
Proto-Celtic
*klārom
(inherited)
←
Irish
clár
(cognate)
←
Proto-Indo-European
*kleh₂ro-
(inherited)
←
Proto-Indo-European
*kelh₂-
(mention)