Sorry do you add ek on to a name to get and his family? Can you clarify, thanks
Yes. But the meaning of -ék can be more broad than just family. It's more like "...and the rest of the group." Context would decide whether that means "Janos and his family" or "Janos and those guys" or "Janos and his buddies" or whatever precisely. (Jánosék is almost exactly what people - with bad grammar - would have referred to as "Janos an' them" where I grew up.)
Yes I can see that from other examples. As you say you just have to make itbout from the context. I am an aussie and some people use the plural yous which of course is equally bad grammar .
"Yous" occurs in some very, er, special accents of American English as well - namely those of a few very special cities in New England. As for the rest of us Americans, if we want to use to a grammatically incorrect plural form of "you", we say "y'all", a contraction of "you all". (And if you want to get really grammatically incorrect, you can even say "all y'all" - "all you all"!)
I don't know how special it is, people saying youse as plural you is ridiculously common in the mid-atlantic states.
y'all is definitely the most common, mostly in the south. Even I often say you guys to mean plural you