Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
llith
←
Proto-Brythonic
*lliθ
(inherited)
←
Welsh
llithio
(link)
←
Irish
leite
(cognate)
←
Latin
lēctiō
(derived)
←
Middle Welsh
llith
(inherited)
→
Welsh
darlith
(affix)