Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian Nynorsk
kjelde
←
Proto-Germanic
*kaldijǭ
(inherited)
←
Proto-Indo-European
*gel-
(root)
←
Old Norse
kelda
(inherited)
→
Norwegian Nynorsk
lyskjelde
(affix)