Right-side
发 supplies the sound — fā shifting to bō in
拨 (f/b labial alternation, well-attested in this phonetic series). The simplified
发 conflates two traditional chars:
發 (issue forth, the source of
拨's reading) and
髮 (hair). The traditional
拨 was
撥 with
癶+
殳 on the right. Phonetic family:
泼 (splash),
钵 (alms bowl),
废 (discard).
