The quality or state of being dwarfish; the characteristic of being small, stunted, or resembling a dwarf.
From 'dwarfish' with the noun-forming suffix '-ness,' which creates abstract nouns from adjectives. The suffix has been used in English for over 1,000 years to make nouns describing qualities.
The '-ness' suffix is so productive in English that you can add it to almost any adjective—even modern slang like 'the awkwardness of teenage years' uses a pattern that's been working for millennia!
Complete word intelligence in one call. Free tier — 50 lookups/day.