Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
ceannaich
←
Irish
ceannaigh
(cognate)
←
Scottish Gaelic
ceann
(suffix)
←
Scottish Gaelic
ich
(suffix)
←
Old Irish
cennaigid
(inherited)
→
Irish
ceannaigh
(cognate)
→
Scottish Gaelic
ceannaiche
(suffix)
→
Scottish Gaelic
ath-cheannaich
(prefix)