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
Primitiva	pree-mee-TEE-vah (Spanish)	Spanish, Late Roman
Sanchez	['sa:ntʃəs]
Mijo	-	Croatian, Serbian
Ornella	-	Italian
RoŽĖ	-	Lithuanian
StanisŁAw	stah-NEE-swahf	Polish