Added 9 October 2026 excession noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about excession at Wordnik → Where our words come from → An act or state of exceeding something; excess. Related Words: excessexorbitanceoverextensionexceedingnessexaltationexuperancyinordinacyexcessivenessexcandescenceexudenceoutperformanceoveradvantage Back to today's word