guarantee, guaranty, surety (undertaking to answer for the payment of a debt, or the performance of a contract or duty, of another, in case of the failure of such other to pay or perform)
köken: Classical collateral form of pre-Classical vāsum, from inherited from Proto-Italic *wāss, cognate with Umbrian vasus (“container”), but further origin uncertain, with no known cognates outside of Italic.
köken: From ค้ำ (kám, “to maintain; to support”) + ประกัน (bprà-gan, “to ensure; to guarantee; to secure”). Probably first used on 11 November 1923, when the first book of the Civil and Commercial Code of Thailand was promulgated.