Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
teimlo
←
Proto-Indo-European
*teh₂g-
(root)
←
Proto-Indo-European
*teh₂g-
(derived)
←
Latin
tango
(cognate)
→
Welsh
ymdeimlo
(affix)