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