Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
meisce
←
Proto-Celtic
*miskos
(derived)
←
Proto-Indo-European
*meyḱ-
(derived)
←
Old Irish
mescae
(inherited)
→
Irish
meisceoir
(suffix)
→
Irish
meisciúil
(affix)
→
Irish
bogmheisce
(affix)
→
Irish
neamh-mheisce
(affix)
→
Irish
deargmheisce
(affix)
→
Manx
meshtey
(cognate)