Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
extent
←
English
extend
(mention)
←
Middle English
extente
(inherited)
←
Old French
estente
(derived)
←
Old French
estendre
(mention)
←
Old French
extendre
(mention)
←
Proto-Indo-European
*tend-
(root)
←
Latin
extentus
(mention)
←
Latin
extendere
(derived)
→
English
multiextent
(prefix)
→
Portuguese
nada
(link)