Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
agairt
←
Scottish Gaelic
agair
(link)
←
Old Irish
ad·gair
(inherited)
→
Scottish Gaelic
ath-agairt
(prefix)