Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
duple
←
English
double
(doublet)
←
Proto-Indo-European
*pel- (fold)
(root)
←
Latin
duplus
(derived)
→
English
subduple
(prefix)