Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
empachar
←
Old French
empeechier
(borrowed)
←
Galician
empacho
(mention)
←
Latin
impedicāre
(derived)
←
Latin
impedicō
(mention)
→
Galician
empacho
(back-formation)