Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
pregar
←
Proto-Indo-European
*pleḱ-
(derived)
←
Latin
praedicāre
(inherited(pt/gl))
←
Latin
plicō
(borrowed)
←
Latin
praedicāre
(inherited)
←
Latin
praedicō
(mention)
←
Latin
prae
(mention)
←
Latin
dicō
(mention)
←
Portuguese
chegar
(doublet)
←
Old Portuguese
pregar
(inherited)
←
Old Portuguese
preegar
(inherited)
→
Portuguese
chegar
(doublet)
→
Portuguese
prego
(back-formation)
→
Portuguese
despregar
(affix)