Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
geurey
←
Proto-Celtic
*gamur
(inherited)
←
Proto-Indo-European
*ǵʰey-
(root)
←
Proto-Indo-European
*ǵʰyem-
(derived)
←
Old Irish
gemred
(inherited)
→
Manx
Frank
(link)
→
Manx
fouyr
(mention)