Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
pell
←
Proto-Indo-European
*kʷel-
(derived)
→
Breton
pell
(cognate)
→
Welsh
pellter
(affix)
→
Welsh
bellach
(suffix)
→
Welsh
ambell
(prefix)