From Middle French quiddité, and its source, Late Latin quidditas, from Latin quid + -itas.
quiddity (plural quiddities)
You can also try words with the phrase QUIDDITY, words starting with the letters QUIDDITY, or words ending in the letters QUIDDITY.
Words… ending with q, starting with q, starting with qa, starting with qo, with two letters, starting with x, starting with j, ending with j,
Some random searches:
VITXYZM, MOUHIY, TSCWKFXO, KLRUFA, HBARERG, PIX,