Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
llwydd
←
Proto-Celtic
*ɸlēdeti
(derived)
←
Proto-West Germanic
*flītan
(cognate)
←
Middle Welsh
llwyddaw
(inherited)
→
Welsh
llwyddo
(affix)
→
German Low German
Fliet
(cognate)