Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
lón
→
Icelandic
lón
(derived)
→
Norwegian Nynorsk
lon
(inherited)
→
Old Norse
Lóni
(cognate)