Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
crith
←
Proto-Celtic
*kritos
(inherited)
←
Welsh
cryd
(cognate)
→
Welsh
cryd
(cognate)
→
Irish
crith
(inherited)
→
Scottish Gaelic
crith
(inherited)