When does Mum become Mam?

[NoEffingWay]

I'm in the midlands, and it's definitely Mum here but I can't work out where it becomes 'Mam'. Is it all over the UK, or is there a crossover somewhere near Sheffield?

Not inciting a north-south debate here, I'm genuinely interested in linguistics!

My mum’s a born and bred Brummie and always says mom.

My dbro and I were born in Brum but moved South when we were young and we say mum.

Thank you - I did not know this! Every day's a school day on mn

I think I know the answer to this. I live on the border between South yorkshire/Lincolnshire/Nottinghamshire.

I called my Mum either Mum or Mam kind of interchangeable. I've noticed since my my Mam/Mum died my adult child also alternates. I think they always have, just like I did.

Always been mam in the North East.When I was a young child it was Mammy.
Mum and Mummy were considered very posh and only used by middle class people.
If it was Ma then it was what is now 'charvy'.

It was mam in the Welsh side and the scouse side for me.

But we said mum. But that was cos everyone around us (Wales but non Welsh speakers) mum. Think the kids in the Welsh school said mam.

Mom in the Black Country as pp said.
And usually nan or nanny for grandmother although I prefer to be called nanna/nana.
There must be a huge hole in the market for mom, mommy, mam and mammy greetings cards. Manufacturers are missing a trick.

Mam in North Yorkshire/South Durham.

Not RTFT but has anyone posted this link yet? brilliantmaps.com/british-irish-words-for-mother-mum-mom/

Yeah I came on to say this about Liverpool. It’s an older generation (and I think a working class) thing - my 80 year old dad and his many siblings called their mum ‘mam’. None of my Gen X cousins call their mums this and it seems to have died out now.

We were in Newcastle just before MiLs birthday a few years ago DH popped into a card shop and came out empty handed because all the Mum cards said Mam so someone is on the case.

Durham girl here and I had a Mam buy my children called my Mum. No idea how that happened.

Mummy or Mother for me

I'm a Salford/Manchester lass and it was always Mam. My mother always called her mother 'mam' but I was told in no uncertain terms not to use that for my mother so it was always 'mum'. Guess she thought it was less 'common'.
DH always uses 'Mam'.
Incidentally my mum's mum was always Nana. I think that's as northern a term as Mam but willing to be proved otherwise!

I wonder if this is an Irish connection. My gran's parents were Irish, and so presumably she used mam when she was growing up in Liverpool. Wonder if there's also the Welsh aspect in earlier Liverpool dialects too.

My grandma (Lancashire) was always 'mam' to her daughters, the first born in Sheffield, the second born in Oldham. My mother was 'mummy' or 'mama' to me. I was/am 'mummy', 'mum' or mamma to dd (Lancashire). Dd is 'mamma' or 'mummy' to dgd (Lancashire/Yorkshire).