| Sponsion 1. (n.) The act of becoming surety for another. 2. (n.) 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. Thesaurus Entries abetment, advocacy, aegis, auspices, backing, capitalization, care, championship, charity, countenance, deficit financing, encouragement, favor, financial backing, financial support, financing, fosterage, funding, goodwill, grubstake, guarantorship, guidance, interest, patronage, patronization, provision of capital, seconding, sponsion, stake, subsidy, support, sympathy, tutelage |