fund-raiser (n.)youdaoicibaDictYouDict
also fundraiser, 1957, from fund (n.) + raise (v.).
telethon (n.)youdaoicibaDictYouDict
prolonged TV fundraiser, 1949, from television + marathon (see -athon). Milton Berle's 16-hour television cancer fundraiser in April 1949 might have been the first to be so called.