Spon"sion (?), n. [L. sonsio, fr. spondere, sponsum, to promise solemnly.] 1. The act of becoming surety for another.

2. (Internat. Law) 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.

Spon"sion (?), n. [L. sonsio, fr. spondere, sponsum, to promise solemnly.] 1. The act of becoming surety for another.

2. (Internat. Law) 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.