Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*batô
→
Danish
både
(derived)
→
Icelandic
bati
(derived)
→
Dutch
baat
(inherited)
→
Saterland Frisian
Baate
(inherited)