Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
llwyr
←
Proto-Celtic
*lēris
(inherited)
←
Old Irish
léir
(cognate)
←
Middle Welsh
llwyr
(inherited)
→
Welsh
trylwyr
(affix)