The Collaborative International Dictionary of English v.0.48:

Outbreathe \Out*breathe"\, v. t.
   1. To breathe forth. "Outbreathed life." --Spenser.
      [1913 Webster]

   2. To cause to be out of breath; to exhaust. --Shak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Outbreathe \Out*breathe"\, v. i.
   To issue, as breath; to be breathed out; to exhale. --Beau. &
   Fl.
   [1913 Webster]