Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
llu
←
Proto-Brythonic
*llʉɣ
(inherited)
←
Proto-Celtic
*slougos
(inherited)
→
Welsh
heddlu
(compound)
→
Welsh
teulu
(affix)
→
Welsh
corfflu
(compound)
→
Welsh
gweithlu
(compound)