Sponsion
Pronunciation : Spon"sion
Part of Speech : n.
Etymology : [L. sonsio, fr. spondere, sponsum, to promise solemnly.]
Definition : 1. The act of becoming surety for another.
2. (Internat. Law)
Defn: An act or engagement on behalf of a state, by an agent not specially authorized for the purpose, or by one who exceeds the limits of authority.
Source : Webster's Unabridged Dictionary, 1913