Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Traveller Norwegian
åkta
←
Ancient Greek
ὀκτώ
(derived)
←
Proto-Hellenic
*oktṓ
(derived)
←
Proto-Indo-European
*oḱtṓw
(derived)
←
Romani
oxto
(inherited)