Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
ràdh
→
Irish
abair
(cognate)
→
Scottish Gaelic
ro-ràdh
(prefix)
→
Scottish Gaelic
eadar-ràdh
(prefix)