Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
cros
←
Proto-Indo-European
*(s)ker-
(root)
←
Latin
crux
(derived)
←
Old Irish
cros
(inherited)
→
Irish
crosán
(affix)
→
Irish
crosaire
(affix)
→
Irish
crosaire
(affix)
→
Irish
cros-
(mention)
→
Irish
crosóg
(affix)
→
Irish
crosdealbhach
(affix)
→
Irish
crosach
(affix)
→
Irish
crosáil
(affix)
→
Irish
ardchros
(affix)
→
Irish
crosdiabhal
(affix)
→
Irish
crúbchrois
(affix)
→
Irish
croisín
(affix)