Added 9 October 2026 seneca noun Categories: PeopleLanguageRare Words noun ! Definition from WordNet 3.1, Princeton University. More about seneca at Wordnik → Where our words come from → Roman statesman and philosopher who was an advisor to Nero; his nine extant tragedies are modeled on Greek tragedies (circa 4 BC - 65 AD). A member of the Iroquoian people formerly living in New York State south of Lake Ontario. The Iroquoian language spoken by the Seneca. Related Words: cayugacollègeimpassivecalmphilosophicalstoicalstoicunemotionalcomposedstolidpatient Back to today's word