Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
atreig
←
Proto-Celtic
*regeti
(derived)
←
Proto-Indo-European
*h₃reǵ-
(root)
←
Proto-Indo-European
*h₃reǵ-
(derived)
←
Old Irish
ess
(prefix)
←
Old Irish
d
(prefix)
→
Cimbrian
rechan
(cognate)
→
Old Irish
atomriug
(mention)