This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
傡 combines the person radical 亻 with 竝, a doubled 立 (stand) shape. The exact historical development is uncertain, but it likely relates to standing side by side or being equal.
A person 亻 beside a doubled standing shape 竝 suggests two people standing together, but the exact meaning is unclear.
For ヘイ, imagine two people standing side by side, like a pair of 'hay' bales standing together: hay -> ヘイ.