ovator
/əʊˈveɪtə/noun
1 Roman History. A person who receives an ovation. rare.
2 Informal. A person who takes part in an enthusiastic welcome or round of applause.
Origin
Mid 17th century; earliest use found in Sylvanus Morgan (1620–1693), arms painter and author. From ovate + -or, probably originally after post-classical Latin ovator one who rejoices.