Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
caith
←
Gaulish
cateia
(cognate)
←
Old Irish
caithid
(inherited)
→
Irish
frithchaith
(affix)
→
Manx
ceau
(cognate)