HSK10+
pǒu
to spit out
not
Originally the same character as 否. A distinguishing mark was added later to the character to differentiate it from 咅. The current meaning "to spit out" is a phonetic loan.
丶 Distinguishing component
zhǔ
dot
Mark used to differentiate 咅 from 否.
否 Sound Meaning component
fǒu, pǐ
Bronze script
Seal script
Clerical script
Regular script
咅
to spit out; pooh; pah; bah; (today used as a phonetic component in 部[bù], 倍[bèi], 培[péi], 剖[pōu] etc)
Sound component in 16 characters (4 verified)
部 培 倍 陪 賠 赔 菩 剖 焙 碚 涪 瓿 锫 掊 踣 醅
Academia Sinica
Make Me a Hanzi
Unicode
Dong Chinese
CC-CEDICT
李学勤《字源》p.448