亢
コウ, たかぶる

high spirits

JLPT0 G13 S0 F5000

The relevant seal inscription form combines an abbreviated form of 大 stand outstretched + two vertical lines# indicating an elongated neck → raise one's head, stretching the throat → *raise* (the head upright); *proud*; *arrogant*; *high*.

[Full Kanji Etymology List]