Safin（讨论 | 贡献）2022年4月29日 (五) 01:26的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/valedictorian ref] Formed 1759, from valediction(“speech made when leaving”). ==…”的新页面）
"student who pronounces the oration at commencement exercises of his or her class," 1832, American English, from valedictory + -ian. As an adjective from 1834.
