Meaning of SURETY in English
/ ˈʃʊərəti; ˈʃɔːr-; NAmE ˈʃʊr-/ noun [ C , U ] ( pl. -ies ) ( law )
money given as a promise that you will pay a debt, appear in court, etc. :
She was granted bail with a surety of $500.
a person who accepts responsibility if sb else does not pay a debt, appear in court, etc. :
to act as surety for sb
Middle English (in the sense something given to support an undertaking that someone will fulfil an obligation ): from Old French surte , from Latin securitas , from securus free from care, from se- without + cura care.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005