matron
娒 centers on an older woman in a respected, supervisory role: a matron. The single given meaning is narrow, so the core idea is simply a mature female authority figure.
娒 combines 女 (woman) with 每, which likely contributes a sound element. The exact historical development is uncertain, and the character is rare in modern Japanese.
A woman 女 beside 每, which looks like a mother 母 with a hairpin, suggests an older, respected female figure: a matron.
For ボ, imagine a matron named Bo who watches over the household: Bo -> ボ, and her presence commands respect.