This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 髩 is uncertain. It likely combines 髟 (hair) with a phonetic component, but the original meaning and component relationships are unclear.
Since the meaning is unclear, focus on the shape: 髟 (hair) on top and 丏 (a rare component) below. Remember it as a rare hair-related kanji with an obscure lower part.
For ヒン, imagine a rare hairpin (ヘアピン) with the ヒン sound: hairpin -> ヒン, and the top 髟 suggests hair.