Had an idea for a fantasy setting in mind for a few years now (constantly procrastinate over writing something set in the setting though 
) and in it ‘dwarf’ refers to humans with dwarfism and similar physical conditions while the fantasy/Tolkien-type dwarves are called dwarrow (singular)/dwerrow (plural), which is taken from a letter/essay Tolkien wrote talking about the correct pluralisation of dwarf (ie why he calls them dwarves instead of dwarfs; the latter was the standard spelling at the time but when he was young he developed the former spelling as being linguistically more correct; when he was older and actually researched the etymology he came to the conclusion that if the word had continued to develop as the words for man/men did, then the correct plural of dwarf would be dwerrows/dwarrows, hence why one of the names for Moria in LotR was ‘Dwarrowdelf’). 
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