Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
giwerthan
←
Old English
geweorþan
(cognate)
←
Old High German
giwerdan
(cognate)
←
Old Saxon
gi
(prefix)
←
Old Saxon
werthan
(prefix)