Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
costumbre
←
Catalan
costum
(cognate)
←
Spanish
consuetud
(doublet)
←
French
coutume
(cognate)
←
Italian
costume
(cognate)
←
Latin
(mention)
←
Latin
*consuetumen
(mention)
←
Latin
cōnsuētūdinem
(inherited)
←
Latin
cōnsuētūdō
(mention)
←
Latin
cōnsuēscō
(mention)
←
Latin
con-
(mention)
←
Latin
suēscō
(mention)
←
Old Spanish
costumne
(inherited)
←
Portuguese
costume
(cognate)
→
Spanish
acostumbrar
(mention)
→
Spanish
costumbrismo
(affix)
→
Spanish
-dumbre
(mention)
→
French
coutume
(cognate)
→
Galician
costume
(cognate)