Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
efydd
←
Proto-Brythonic
*öβ̃ɨð
(inherited)
←
Proto-Celtic
*omiyom
(inherited)
←
Old Welsh
emid
(inherited)
←
Old Irish
umae
(cognate)
←
Middle Welsh
euyð
(inherited)
→
Scottish Gaelic
umha
(cognate)
→
Old Irish
umae
(cognate)