悲
ヒ, かな.しい, かな.しむ

grieve, sad, deplore, regret

JLPT3 G3 S12 F1014

As per 非# (spread in alignment to right and left) + 心 heart/emotions → heart split by *sadness* or lamentation → *lament*; *grieve* → *mercy* (← strive to eliminate the sadness of common people). Compare and contrast 悱.

[Full Kanji Etymology List]