Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ommidan
←
Irish
amadán
(cognate)
←
Scottish Gaelic
amadan
(cognate)
←
Middle Irish
*ammatán
(inherited)
→
Scottish Gaelic
amadan
(cognate)