Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
anadl
←
Proto-Brythonic
*anadl
(inherited)
←
Proto-Celtic
*anatlā
(inherited)
←
Proto-Indo-European
*h₂enh₁-
(derived)
←
Old Irish
anál
(cognate)
→
English
Enid
(cognate)
→
Welsh
anadlu
(affix)
→
Old Irish
anál
(cognate)