Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
rhwyf
←
Proto-Brythonic
*rruɨβ̃
(inherited)
←
Latin
rēmus
(derived)
←
Middle Welsh
rwyf
(inherited)
→
Welsh
rhwyfo
(affix)
→
Latin
Remi
(cognate)