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 indifferent person. Pateat universis per presentes, quod Wilhelmus Tylar de Yetton, et Thomas Gower 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 altè et bassè ipsius domini Regis supposuimus voluntati.