Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
West Frisian
aard
←
Proto-Germanic
*ardiz
(inherited)
←
Old Frisian
*ard
(inherited)
←
Old Frisian
erd
(mention)
→
West Frisian
aardich
(suffix)