Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
hwa
←
Proto-Germanic
*hwaz
(inherited)
←
Proto-Indo-European
*kʷos
(derived)
←
Proto-Indo-European
*kʷis
(mention)