Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
couplet
←
English
cabaletta
(doublet)
←
French
couplet
(derived)
→
English
triplet
(mention)
→
English
cabaletta
(doublet)
→
English
coupleteer
(suffix)