I have gone through many a post here and elsewhere that treats home in such sentences as
Stay home.
Go home.
prepositions.
Admittedly, this is a fairly new perspective of looking at the POS, thanks largely to Otto Jespersen. However, beyond a smattering of information about this new approach to classify the POS, nothing more is to be found anywhere on the internet. Maybe, I can't zero in on the right information.
My question then is what makes home a special word that we treat it, and not other such words (say, factory, store, shop, etc.), as a preposition? Could it be that such sentences as above became idiomatic through word of mouth and forced a novel classification of home? And how does this change the definition of a preposition, which traditional grammar defines as: A word that shows in what relation a noun or a pronoun stands to other elements of a clause or a sentence.