Related formssub·stan·ti·val·ly, adverbnon·sub·stan·ti·val, adjectivenon·sub·stan·ti·val·ly, adverb
Examples from the Web for substantival
Besides these, substantival and adverbial numerals can be used.
But substantival datives and accusatives, as in Modern English, follow the predicate.Anglo-Saxon Grammar and Exercise Book|C. Alphonso Smith
Archbishop Whately has some remarks on this substantival power in his Logic.The English Language|Robert Gordon Latham
Names formed from a single ground-word or substantival,—with or without a locative or other suffix.
Those which have a single element, the substantival or 'ground-word,' with its locative suffix.