Added 10 October 2026 mainyard noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about mainyard at Wordnik → Where our words come from → The yard of the mainmast, from which the mainsail is hung Origin From main + yard. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: mainmain-mastmainboommainstaymainsheetmainmastmaintopmastmain-deckaftermastmiddlemast Back to today's word