Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
þénari
←
Proto-Indo-European
*tekʷ-
(root)
←
Old Norse
þéna
(suffix)
←
Old Norse
-ari
(suffix)
→
Norwegian Bokmål
tjener
(derived)
→
Norwegian Nynorsk
tenar
(inherited)