Source : Webster's Revised Unabridged Dictionary (1913)

Outbreathe \Out*breathe"\, v. t.
   1. To breathe forth. ``Outbreathed life.'' --Spenser.

   2. To cause to be out of breath; to exhaust. --Shak.

Outbreathe \Out*breathe"\, v. i.
   To issue, as breath; to be breathed out; to exhale. --Beau. &
   Fl.