Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
geayr
←
Irish
géar
(cognate)
←
Scottish Gaelic
geur
(cognate)
←
Old Irish
gér
(inherited)
→
Irish
géar
(mention)
→
Scottish Gaelic
geur
(mention)