ALTO et Basso, or in Alto & in Basso, in law, signifies
Alto 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 Tetton, & Thomas Gover de Almestre, posuerunt se in Alto & in Basso, in arbitrio quatuor hominum; viz. de quadam querela pendente inter eos in curia. Nos & terram nostram altē & basse ipsius domini Regis supposuimus voluntati.