Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Spanish por
Spanish pro (doublet)
Latin prō (inherited)
Latin per (mention)
Old Spanish por (inherited)

Esperanto por (derived)
Spanish pro (doublet)
Spanish para (mention)
Spanish para (link)
Spanish porque (affix)
Spanish por qué (compound)
Spanish pormenor (affix)
Spanish por ende (compound)
Spanish por doquier (compound)
Spanish por doquiera (mention)