Added 9 October 2026 excerbation noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about excerbation at Wordnik → Where our words come from → Misspelling of exacerbation. Related Words: exagerationexcedancedeteriationhyperexcitablityextentionexanguinationextravasionextravationextravazationextacyamplicationintensivity Back to today's word