Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
ċēap
→
Old English
ceapstow
(compound)
→
Old English
ceapmann
(compound)
→
Finnish
kauppa
(cognate)
→
Old Frisian
kap
(cognate)