由旬

由延; 兪旬 (or 揄旬) ; 踰繕那 (or 踰闍那 or 踰延那) Yojana; described as anciently a royal day's march for the army; also 40, 30, or 16 li; 8 (sa) krośas 拘羅舍, one being the distance at which a bull's bellow can be heard; M. W. says 4 (sa) krośas or about 9 English miles, or nearly 30 Chinese li.