𱎁

𱎁 (Kangxi radical 5, 乙+4, 5 strokes, composition ⿺𠃊不)

Derived from a cursive form. 厂 turned into 丆 which became a part of 不, while 止 became 𠃊.

Speculated to also be that 不 is actually 禾 or 木.

𱎁: Hán Việt readings: lịch
𱎁: Nôm readings: lịch

1. Variant of 歷, see there for more details.
   • Nhị thập tứ hiếu diễn âm (二十四孝演音), pg. 1b

     𠇍番𡽫𱎁坡配、

     Mấy phen non Lịch pha phôi.

     Many times, he toiled in the Lich mountains.