Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
colli
←
Welsh
coll
(affix)
←
Welsh
-i
(affix)
←
Latin
clādēs
(cognate)
←
Old Irish
coll
(cognate)