by mistake

in error; accidentally. I'm sorry. I came into the wrong room by mistake. I chose the wrong road by mistake. Now we are lost.

without intending to I'm sorry – I dialed your number by mistake.

Erroneously, as in He took my coat by mistake. [c. 1700]

Name	Pronounced	Usage
Jani	YAH-nee (Finnish)	Finnish, Hungarian
Sardar	-	Persian, Urdu, Pashto
Cora	['kɔ:rə]
Karyna	-	English (Rare)
Roseann	ro-ZAN	English
Imrus	-	Hungarian