Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
mentres
←
Spanish
mientras
(cognate)
←
Italian
mentre
(cognate)
←
Latin
dum
(inherited)
←
Latin
interim
(mention)
←
Old Portuguese
mentre
(inherited)
→
Galician
entrementres
(compound)
→
Galician
entrementres
(mention)
→
Galician
mentrexar
(mention)