Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-West Germanic
*flahs
→
Old English
fleax
(inherited)
→
Old High German
flahs
(inherited)
→
Saterland Frisian
Floaks
(inherited)