Added 6 October 2026 knightess noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about knightess at Wordnik → Where our words come from → A female knight. The wife of a knight. Origin From knight + -ess. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: knightresscourtieresskeeperessmagicianessequestrianessdragonesswizardessassassinatrixchancelloresslawyeresswarrioresspeasantess Back to today's word