Meaning of ひとりでに in Japanese

Definition of ひとりでに

ひとりでに(hitorideni) 【独りでに ·一人でに】

不思議な話はなしだが、ドアがひとりでに開いたあく。

Although it was a wonderful talk, the door opened of itself.

Strange to say, the door opened of itself.

彼かれはひとりでに目がさめた。

He woke up of himself.

Strange to say, the door opened of itself.

The candle went out of itself.

The candle went out by itself.

ドアがひとりでに開いたあく。

The door opened automatically.

その木きはひとりでに倒れた。

The tree fell down by itself.

そのドアはひとりでに開いたあく。

The door opened of itself.

The door locks automatically.