は生haやすyasu
1.
To facilitate the natural growth of plants, allowing them to flourish as they would in ideal conditions.
2.
To promote the development of hair or other biological features, enabling them to grow longer or thicker, such as growing a beard.
3.
To refrain from trimming or cutting, allowing certain features like horns or roots to extend and mature in a natural state.
Example:
あごひげをはやした神様は自分が離れたのと同じ方法で戻ってくると約束していた。