Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*ētijaz
→
Icelandic
ætur
(derived)
→
Norwegian Nynorsk
-æt
(inherited)
→
Old Norse
ætr
(inherited)