Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
feeaih
←
Irish
fia
(cognate)
←
Scottish Gaelic
fiadh
(cognate)
←
Old Irish
fíad
(inherited)
→
Scottish Gaelic
fiadh
(cognate)
→
Manx
feeaihagh
(affix)
→
Manx
feeaihaght
(suffix)