亘
コウ, カン, わた.る, もと.める, せん, のぶ, とうる, わたる, ひさし

span, request

JLPT1 G13 S0 F1728

The relevant seal inscription form is 回# rotation + 二 align → circle about a neatly demarcated parcel of land → *cross over from one point to another*; *range*; *extend over*.

[Full Kanji Etymology List]