Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
crua
←
Proto-Celtic
*kroudis
(inherited)
←
Proto-Indo-European
*krewh₂-
(inherited)
←
Old Irish
crúaid
(inherited)
→
Irish
cruas
(mention)
→
Irish
cruach
(affix)
→
Irish
cruamhuineálach
(affix)
→
Irish
cruadhéanta
(affix)
→
Irish
cruabhéalach
(affix)
→
Irish
cruachroíoch
(affix)
→
Irish
cruachraicneach
(affix)
→
Irish
cruachás
(affix)
→
Galician
croio
(cognate)
→
Galician
coio
(cognate)