This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
俌 combines 亻 (person) with 甫, which likely contributes sound. The exact historical development is uncertain.
A person 亻 beside 甫, a shape that appears in many characters. Without a clear meaning, picture a person standing next to a helper or tool.
For ホ, imagine a person 亻 offering a helping hand (甫) and saying 'ho!' to get attention: ho -> ホ.