What's the noun for dwarfishness? Here's the word you're looking for.
dwarf
(mythology) Any member of a race of beings from (especially Scandinavian and other Germanic) folklore, usually depicted as having some sort of supernatural powers and being skilled in crafting and metalworking, often depicted as short, and sometimes depicted as clashing with elves.
(offensive) A person of short stature, often one whose limbs are disproportionately small in relation to the body as compared with normal adults, usually as the result of a geneticcondition.
An animal, plant or other thing much smaller than the usual of its sort.