This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
儧 combines 亻 (person) with 賛, which likely contributes sound. The exact historical development is uncertain.
A person 亻 beside 賛, a component associated with approval or gathering. Picture a person gathering or assembling something, though the exact meaning is unclear.
For サン, imagine a person 亻 giving a 賛 (さん, approval) nod: 賛 -> サン, and the person gathers approval.