Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
bimithan
←
Old English
bemīþan
(cognate)
←
Old High German
bimīdan
(cognate)
←
Old Saxon
bi
(prefix)
←
Old Saxon
mithan
(prefix)