What is "sper"

Sper \Sper\, Sperre \Sperre\, v. t. [See Spar bar.] To shut in; to support; to inclose; to fasten. [Obs.] ``To sperre the gate.''
--Spenser.

Sper may refer to:

• Sper (Georgia), ancient Georgian principality
• Sper (Armenia), old region of old Armenia
• South Pacific Electric Railway, which operates the Sydney Tramway Museum
• Solid phase epitaxial regrowth, a method to obtain epitaxial layers of good quality.