Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
West Frisian
fean
←
Proto-Germanic
*fanją
(inherited)
←
Old Frisian
fane
(inherited)
←
Old Frisian
fene
(mention)
→
English
fen
(cognate)