Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Galician axudar
Asturian axudar (cognate)
Spanish ayudar (cognate)
Latin adiūtāre (inherited)
Latin adiūtō (mention)
Portuguese ajudar (cognate)
Old Portuguese ajudar (inherited)

Galician axuda (back-formation)
Galician axuda (link)