Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
teilg
←
Proto-Indo-European
*leykʷ-
(root)
←
Middle Irish
teilcid
(inherited)
←
Old Irish
do·léici
(inherited)
←
Old Irish
·teilci
(mention)
→
Irish
teilgeoir
(affix)
→
Irish
urtheilgeach
(affix)