挨
アイ, ひら.く
push open
JLPT0 G7 S10 F2258
As per 矣# (come to a stop) + 手 hand/action indicator → cause to come to a stop in order/sequence → *push* (from behind) → *approach*. 挨 is rarely used except in the compound 挨拶 (greeting).
[Full Kanji Etymology List]