Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Portuguese in-
Latin in- (borrowed)

Portuguese ilegal (affix)
Portuguese impreciso (affix)
Portuguese insalubre (affix)
Portuguese inusual (affix)
Portuguese inacreditável (affix)
Portuguese impudico (affix)
Portuguese impaciente (affix)
Portuguese invariante (affix)
Portuguese insolvente (affix)
Portuguese improcedente (affix)
Portuguese inseguro (affix)
Portuguese imparcial (affix)
Portuguese insensível (affix)
Portuguese imprestável (affix)
Portuguese iletrado (affix)
Portuguese inacentuado (affix)
Portuguese indefinido (affix)
Portuguese infundado (affix)
Portuguese instável (affix)
Portuguese inorgânico (affix)
Portuguese ilegítimo (affix)
Portuguese ilegitimidade (affix)
Portuguese ilicitamente (affix)
Portuguese ilicitude (affix)
Portuguese iliquidez (affix)
Portuguese ilíquido (affix)
Portuguese imoral (affix)
Portuguese imperfeitamente (affix)
Portuguese impropriedade (affix)
Portuguese inalienabilidade (affix)
Portuguese irresponsabilidade (prefix)
Portuguese improbabilidade (affix)
Portuguese impotência (affix)
Portuguese inactivar (affix)
Portuguese inalterável (affix)
Portuguese ilegível (affix)
Portuguese imperceptível (affix)
Portuguese indiscutível (affix)
Portuguese imperecível (affix)
Portuguese incompreendido (affix)