Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
dood
←
Proto-Germanic
*daudaz
(inherited)
←
Proto-West Germanic
*daud
(inherited)
←
Old Frisian
dād
(inherited)
→
Saterland Frisian
döödelk
(suffix)