sponsion
noun
spon·sion
| \ ˈspänchən\
plural -s
Definition of sponsion
1
Roman law
: suretyship accessory to oral contracts and available only to Roman citizens
2
: the act of becoming surety
especially
: a formal pledge made on behalf of another
3
: an act or engagement on behalf of a state undertaken by an agent not specially authorized or by one who exceeds the limits of his authority and requiring for validity ratification by the state
Keep scrolling for more