Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
llatai
←
Welsh
llad
(affix)
←
Welsh
-ai
(affix)
←
Welsh
llad
(affix)
←
Welsh
-hai
(affix)