Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
sōþian
→
English
prove
(cognate)
→
English
soothe
(inherited)
→
Old English
gesoþian
(prefix)
→
Old English
unsoþian
(prefix)