Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ciall
←
Proto-Celtic
*kʷēslā
(inherited)
←
Welsh
pwyll
(cognate)
←
Old Irish
cíall
(inherited)
→
Irish
míchiall
(affix)
→
Irish
aonchiallach
(affix)
→
Irish
aonchiallacht
(confix)
→
Irish
comhchiallach
(affix)
→
Irish
ciallmhar
(affix)
→
Irish
fochiall
(affix)
→
Irish
díchiall
(prefix)
→
Irish
aingiall
(affix)
→
Irish
éigiall
(affix)
→
Manx
keeall
(cognate)