Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
fǫgnuðr
←
Proto-Indo-European
*peḱ-
(root)
←
Old Norse
fagna
(suffix)
←
Old Norse
-naðr
(suffix)
→
Icelandic
fögnuður
(inherited)
→
Norwegian Nynorsk
fagnad
(mention)
→
Swedish
fägnad
(mention)