guarantee (v.) Copy link Outline 1. fĭdem alicui do, interpono2. intercēdo, ssi, ssum, 3 (esp. in money matters)3. sătisdo (or satis do), 1, irr. (legal term) • guarantee (v.): 1. fĭdem alicui do, interpono: he g.d him that (viz. that he should suffer no harm), in eam rem se f. suam interponere, Caes. B. G. 5, 36: v. guarantee (subs.). 2. intercēdo, ssi, ssum, 3 (esp. in money matters): to g. a person for a large sum of money (i. e. to become security for him), pro aliquo magnam pecuniam int., Cic. Att. 1, 6, 4. 3. sătisdo (or satis do), 1, irr. (legal term): to g. the payment of the legacies before entering on an inheritance, ante aditam hereditatem s. de legatis, Ulp. 36, 3, 4 § 4: Cic.: comp. preced. art. (I. 2).