I need to ask about this if I have mistakenly called my wife ‘meri maa’ does that effect nikah?
Answer:
(Fatwa: 93/71/B=1433)
It will not have any effect on your nikah; however it is makrooh to say like this.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband