Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
rosualt
←
Middle Irish
rosualt
(inherited)
←
Old Norse
hrosshvalr
(derived)
←
Old Norse
hross
(mention)
←
Old Norse
hvalr
(mention)