扁
ヘン, ひらたい
level, small
JLPT0 G13 S0 F5000
Originally 反# (thin sheet of wood) + 冊 (bamboo slats) → thin, flat *nameplate* (compare 榜) spread upon a gate → (votive) *tablet*; *flat*; *thin* → *left-hand element of a Han/Chinese character* (← element by which a character may be identified ← nameplate).
[Full Kanji Etymology List]