亙
コウ, カン, わた.る, もと.める, のぶ

range, reach, extend, cover

JLPT0 G13 S0 F5000

Depiction of the moon crossing the evening sky from end to end → *cross over*; *extend/go/run all the way across/through*; *range* (over/about). Some dictionaries list 亙 as a variant form of 亘, but they are separate characters.

[Full Kanji Etymology List]