Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
bundúchasach
←
Irish
bun-
(affix)
←
Irish
dúchasach
(affix)
→
Manx
bun-dooghyssagh
(cognate)