Source : Webster's Revised Unabridged Dictionary (1913)

Dwarfish \Dwarf"ish\, a.
   Like a dwarf; below the common stature or size; very small;
   petty; as, a dwarfish animal, shrub. -- {Dwarf"ish*ly}, adv.
   -- {Dwarf"ish*ness}, n.

Source : WordNet®

dwarfishness
     n : smallness of stature