 Not all words ending in "-aŭ" are adverbs, and most of the adverbs that end in "-aŭ" have other functions, such as "hodiaŭ" "today" [noun or adverb] or "ankoraŭ" "yet, still" [conjunction or adverb].About a dozen other adverbs are bare roots, such as "nun" "now", "tro" "too, too much", not counting the adverbs among the correlatives.