陪 is built from the 阝 (hill (left) / village (right)) and 咅 (split (in 部·倍)) components.
It belongs to a phonetic family with 倍, 賠, and 培 — they share the 咅 component and the reading バイ.
A common word using 陪 is 陪審 (ばいしん), meaning “jury”.
Kanji that look similar include 部, 郭, 郵, and 都.