Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
*pulvus
→
Catalan
pols
(mention)
→
Spanish
polvareda
(mention)
→
Galician
po
(mention)
→
Portuguese
pó
(mention)
→
Old Portuguese
poo
(mention)