Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
swikan
←
Old English
swīcan
(cognate)
←
Proto-Germanic
*swīkwaną
(inherited)
←
Proto-West Germanic
*swīkwan
(inherited)