1. The act of proroguing.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• prorougation,
• propegation,
• propogation,
• propigation,
• provokation,
• propgation,
• prologation,
• ororogation,
• lrorogation,
• -rorogation,
• 0rorogation,
• preorogation,
• proerogation,
• provogation,
• prorogations,
• porogations,
• Propognation,
• Propogaiton,
• prolevation,
• Precogation

• prerogative,
• prorogue.

The adjective form of the word "prorogation" is "prorogative".

The plural of the "prorogation" can be the "prorogations".

The singular of the "prorogation" can be the "prorogation".