Main Entry: quid·di·ty

Pronunciation: \ˈkwi-də-tē\

Function: noun

Inflected Form(s): plural quid·di·ties

Etymology: Middle English quidite, from Medieval Latin quidditat-, quidditas essence, from Latin quid what, neuter of quis who — more at who

Date: 14th century

1 : whatever makes something the type that it is : essence
2 a : a trifling point : quibble b : crotchet, eccentricity