Source : Webster's Revised Unabridged Dictionary (1913)

Submiss \Sub*miss"\, a. [L. submissus, p. p. of submittere to
   let down, to lower. See {Submit}.]
   1. Submissive; humble; obsequious. [Archaic] ``Soft Silence
      and submiss Obedience.'' --Spenser. ``Stooping and
      submiss.'' --R. L. Stevenson.

   2. Gentle; soft; calm; as, submiss voices. [R.]