last (adj., adv.)youdaoicibaDictYouDict[last 词源字典]
"following all others," from Old English latost (adj.) and lætest (adv.), superlative of læt (see late). Cognate with Old Frisian lest, Dutch laatst, Old High German laggost, German letzt. Meaning "most recent" is from c. 1200. The noun, "last person or thing," is c. 1200, from the adjective. Last hurrah is from the title of Edwin O'Connor's 1956 novel. Last word "final, definitive statement" is from 1650s. A dying person's last words so called by 1740. As an adjective, last-minute attested from 1913. Last-chance (adj.) is from 1962.[last etymology, last origin, 英语词源]