ussissentDictionary entriesuro, urere, ussi, ustus:Verb · 3rd conjugationFrequency:Frequent= burn;Entry →pl. pluperf. act. subj. 3rdExamplesLiber IILucius Annaeus Seneca (Seneca the Younger) from QUAESTIONES NATURALES"...accensum est, - potest enim illud ipso transitu ignis ussisse, - quis nescit uri quidem nec ardere, nihil autem ardere..."