surety
noun
[ ˈʃʊərɪti ]
• a person who takes responsibility for another's performance of an undertaking, for example their appearing in court or paying a debt.
• "the rights of wives who act as sureties for their husband's debts"
• the state of being sure or certain of something.
• "the surety of my impending fatherhood"
Origin:
Middle English (in the sense ‘something given to support an undertaking that someone will fulfil an obligation’): from Old French surte, from Latin securitas (see security).
stand surety
• become a surety; stand bail.
• "Alfonso agreed to stand surety for his friend's behaviour"
