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. The following are examples of the use of the phrase:—Pateat universis per presentes, quod Willielmus Tylar de Yetton, et Thomas Goner de Almestre, posuerunt se in Alto et in Basso, in arbitrio quatuor hominum; viz., de quadam querela pendente inter eos in curia. Nos et terram nostram alto et basso ipsius domini Regis supponimus voluntati.