Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
ótti
←
Proto-Indo-European
*h₂egʰ-
(root)
←
Proto-Indo-European
*h₂egʰ-
(derived)
←
Icelandic
aga
(mention)
←
Icelandic
agi
(mention)
←
Old Norse
ótti
(inherited)
→
Icelandic
óttast
(mention)