Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
do·éccai
→
Irish
féach
(inherited)
→
Scottish Gaelic
feuch
(inherited)
→
Manx
jeeagh
(mention)
→
Middle Irish
fégaid
(inherited)