Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ooir
←
Irish
úir
(cognate)
←
Middle Irish
úir
(inherited)
←
Old Irish
úr
(inherited)
→
Manx
fo-ooir
(prefix)