quiddity /kwidˈi-ti/ or (archaic) quiddit /kwidˈit/

1. The inherent nature or essence of anything
2. Any trifling nicety
3. A quibble

quiddˈitātive adjective

• in someone's teeth
• in some sort
• insomnia
• insomniac
• insomniacs
• insomnias
• insomnious
• insomnolence
• insomnolences
• insomuch
• insooth
• in sort
• insouciance
• insouciances
• insouciant
• insouciantly
• insoul
• insouled
• insouling
• insoulment
• insoulments
• insouls
• in-source
• in-sourced
• in-sources