撥
ハツ, バチ, は.ねる, おさ.める

brush up, reject, exclude, eliminate, bone plectrum

JLPT0 G13 S0 F5000

As per 發# (split away in being released) + 手 hand/action indicator (for emphasis/clarification) → push/set objects aside → *push aside*; *set aside* *release* → *allocate* → *spring* (outward/upwards; compare 孛); *separate* (← become separated as a result of being released) → *eliminate*; *reject* (← separate those chosen from those not). Also, *plectrum*.

[Full Kanji Etymology List]