Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
multitud
←
Spanish
muchedumbre
(doublet)
←
Latin
multitūdō
(borrowed)
←
Latin
multitūdinis
(mention)
←
Portuguese
multidão
(cognate)
→
Spanish
muchedumbre
(doublet)
→
Spanish
multitudinario
(suffix)