(idiomatic) At one's own instigation, of one's own accord.

(idiomatic) To feel overwhelming sorrow, jealousy, or longing; to grieve.

(idiomatic) To begin gaining experience; to tentatively try something new.

(intransitive, idiomatic) To get confused or mixed up about another person's intentions; to misunderstand one another.

(duration, idiomatic) For a hopelessly long time; used especially in respect to discussing, explaining, insisting, etc.

(idiomatic) To tell an obvious untruth.

(idiomatic) Hurt or destroyed by one's own plot or device intended for another; "blown up by one's own bomb".

(idiomatic) To open an office or business, especially in a profession.

(idiomatic) To relax.

(idiomatic) To reform; to improve one's habits.