兄
ケイ, キョウ, あに, え, せ, よし

elder brother, big brother

JLPT4 G2 S5 F1219

The relevant oracle bone form of this character combines 儿 person + a large head → large-headed person extending the arms in prayer. *Elder brother* is a borrowed meaning. Note how the original connection with prayer is preserved in 呪 and in 祝.

[Full Kanji Etymology List]