on (one's) own volition

Of one's own choice. No one told me to leave. I left early on my own volition. You failed this class on your own volition—don't try to blame it on me!

Common Names:

Name	Pronounced	Usage
Kiira	KEE:-rah	Finnish
Al-Amir	-	Arabic (Rare)
Volkan	-	Turkish
Touthmosis	-	Ancient Egyptian (Hellenized)
Jumanah	-	Arabic
Vilhelms	-	Latvian