Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ben
←
Proto-Celtic
*benā
(inherited)
←
Proto-Indo-European
*gʷḗn
(inherited)
←
Old Irish
ben
(inherited)
→
Manx
ben jee
(prefix)
→
Manx
bendiuic
(prefix)