Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Galician caixa
Spanish caja (cognate)
Latin capsa (inherited)
Portuguese caixa (cognate)
Old Portuguese cajxa (inherited)
Old Portuguese qajxa (mention)

Galician encaixar (prefix)
Galician requeixo (link)
Galician caixón (suffix)