Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
bruith
←
Old Irish
bruithid
(inherited)
←
Old Irish
bruith
(mention)
→
Irish
suanbhruith
(affix)
→
Irish
bruthaire
(affix)
→
Manx
broie
(cognate)