Why is the word "婍" rarely used?

Pronounced qǐ, it means beautiful appearance, intelligence, benevolence, and outstanding talent. It is mostly used in female names and is not a common word.

婍嬟

Pinyin: qǐ yǐ

Definition: refers to a beautiful woman.

嬟婍

Pinyin: yǐqǐ

Definition: Chinese word referring to beautiful appearance.