Avast
Pronunciation : A*vast"
Part of Speech : interj.
Etymology : [Corrupted from D. houd vast hold fast. See Hold, v. t., and Fast, a.] (Naut.)
Definition : Defn: Cease; stop; stay. "Avast heaving." Totten.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder