Added 9 October 2026 oarlock noun Categories: ThingsObscure Words In Latin: scalmus Wiktionary noun ! Definition from WordNet 3.1, Princeton University. More about oarlock at Wordnik → Where our words come from → A holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing. Origin From oar + lock. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: rowlockpegtholepinpintholeoutriggeroarbladeoxbowloomearlockbow-guard Back to today's word