Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian Nynorsk
læger
←
Proto-Indo-European
*legʰ-
(root)
←
Norwegian Nynorsk
leir
(doublet)
←
Old Norse
legr
(derived)
→
Norwegian Nynorsk
leir
(mention)
→
Norwegian Nynorsk
lægre
(mention)
→
Norwegian Nynorsk
lægra
(mention)