Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
swied
←
Proto-West Germanic
*swinþ
(inherited)
←
Old Frisian
swīthe
(inherited)
→
English
swith
(cognate)