vagarianEtymologyFrom vagary + -ian. By surface analysis, Latin vag(us) + -arian.nounOne with ridiculous or whimsical ideas; a crackpot.“Why, it was but yesterday that the mariner's compass was discovered, that printing was shown to be practicable, that steam power was laughed at as an absurdity, and the electric telegraph ridiculed as the hobby of a vagarian's brain.”