ALTO Basso, or in ALTO et in Basso, in Law, signifies the absolute reference of all differences, small and great, high and low, to some arbitrator or disinterested person. Pateat universis per presentes, quod Wilhelmus Tyllar de Yetton, et Thomas Gower de Almetre, posuerunt se in Alto et in Basso, in arbitrio quatuor hominum; viz. de quadam querela pendente inter eos in curia. Nos et terram nostram altè et bassè ipsius domini Regis supponimus voluntati.