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.
He offered to help of his own accord.
Children who study willingly on their own improve.
Phrase composed of 自分 (oneself) + から (from). The combination literally means 'from oneself' and has become a fixed adverbial expression meaning 'of one's own accord'.