Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
hirdi
←
Proto-West Germanic
*hirdī
(inherited)
→
Old English
hierde
(cognate)
→
Plautdietsch
Hoad
(inherited)