Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
lleuad
←
Welsh
lleu
(suffix)
←
Welsh
-ad
(suffix)
←
Welsh
golau
(mention)
←
Proto-Indo-European
*lewk-
(inherited)