Grandma70s
Most euphemisms make me shudder, like ‘pass (away)’ instead of die. Also ‘toilet’, although that is almost universal now so I’ve got used to it, though I would never say it.
I’m sure there are lots more, but my brain isn’t working.
My mother insisted we say lavatory and considered the word toilet to be a bit 'common'. I tend to say loo and still toilet grates on me. Also living room or lounge instead of sitting room, settee instead of sofa, sweet or dessert instead of pudding. My children think I'm ridiculous but these were all so instilled in me in childhood. I was a nurse and I could never stand the word phlegm which patients often used instead of sputum. It's the most horrible word imaginable. I think I have a degree of synasthesia so can picture some words making them more offensive. Very weird.