Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Langobard
←
English
Lombard
(doublet)
←
Proto-Germanic
*langaz
(compound)
←
Proto-Germanic
*bardaz
(compound)
→
English
Lombard
(doublet)
→
English
longbeard
(mention)