Home › Words › W › whetterwhetter/ˈwɛtə(ɹ)/whetter means A surname.whetter is pronounced /ˈwɛtə(ɹ)/.EtymologyFrom whet + -er.nameA surname.nounSomething that whets. Agent noun of whetDefinitions & examples from Wiktionary (CC BY-SA 3.0).