Arabic adverbs are mostly derived from nominals. The majority of the derived adverbs are, in fact, indefinite accusative nouns or adjectives, although there are also many derived adverbs with ḍammah without nunation or article. Compared to the European languages, Arabic has rather few underived (original) adverbs. The underived adverbs may end in sukuūn or fatḥah, less often in kasrah or ḍammah without nunation.