Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
aðr
→
Old Norse
faxaðr
(suffix)
→
Old Norse
lekaðr
(suffix)
→
Old Norse
bitlaðr
(suffix)