Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
æðr
←
Proto-Germanic
*ēdrǭ
(inherited)
←
Proto-Germanic
*ēþrǭ
(mention)
←
Old Norse
æðr
(inherited)
→
Faroese
æður
(mention)