Right, you said you're from the UK so that's in line with what I would have expected. My unstated point was that multinyms are intrinsically tied to dialects so there is no absolute list of multinyms
> "e'er" would sound slightly different as it's spoken almost like two syllables, though not quite.
I'm a native English speaker (US). Sometimes when I say "ever"/"never", the 'v' sound drops out. So I end up saying "e'er"/"ne'er" but it sounds like "air"/"nair".
> Further down the list, I've just spotted "taught, taut, tot" and "tot" doesn't belong there.
I'm from South Carolina, USA and I pronounce 'greater' and 'grader' the same. There is a subtle difference and that difference can be more noticeable sometimes, but most of the time I'm saying them the same.
For everything in this list, its incredibly common for these groupings to have the same pronunciation where I live.