自じ分ぶんから

expression

willingly; voluntarily; of one's own accord

Expresses that an action is done by one's own will, without being asked or forced. Often used with verbs of action, communication, or offering.

• 彼かれは自じ分ぶんから手伝てつだいを申もうし出でた。

  He offered to help of his own accord.

• 自じ分ぶんから進すすんで勉べん強きょうする子こは伸のびる。

  Children who study willingly on their own improve.