Expromissor
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
In civil law
The person who alone becomes. bound for the debt of another, whether the latter were obligated or not. He differs from a surety, who is bound together with his principal.
Dig. 12. 4. 4; Id. 16. 1. 13; Id. 24. 3. 64. 4; Id. 38. 1. 37. 8.
EXPROMITTERE (Lat.) In civil law. To undertake for another, with the view of becoming liable in his place. Calv. Lex.