Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
lladd
←
Proto-Brythonic
*llað
(inherited)
←
Proto-Celtic
*sladyā
(inherited)
←
Proto-Celtic
*sladyeti
(mention)
→
Welsh
hunanladdwr
(suffix)
→
Welsh
lladdwr
(affix)
→
Welsh
ymladd
(affix)
→
Welsh
ymlâdd
(affix)
→
Welsh
adladd
(affix)
→
Old Irish
slaidid
(cognate)