Related to demand, synonymous with claim what is legitimate, we have several adjectives: callable which means that it can be demanded, demanding, which requires and demanded, what has been demanded. In legal language is used also the genitive of the future participle passive exigendus - a - um of the Latin verb exigo, forming latinisms as facultas exigendi ( capacity require ) ius exigendi ( right to demand ) or privilegium exigendi ( the privilege of demanding ).