The Collaborative International Dictionary
Tartarous
Tartarous \Tar"tar*ous\, a. [Cf. F. tartareux.] Containing tartar; consisting of tartar, or partaking of its qualities; tartareous.
Tartarous
Tartarous \Tar"tar*ous\, a. Resembling, or characteristic of, a Tartar; ill-natured; irritable.
The Tartarous moods of common men.
--B. Jonson.
Wiktionary
tartarous
a. Of, pertaining to, or derived from tartar.