super (adj.)youdaoicibaDictYouDict
"first-rate, excellent," 1837, from prefix in superfine (1680s), denoting "highest grade of goods," from Latin super "above, over, beyond" (see super-). Extended usage as a general term of approval is 1895 slang, revived by 1967. Rhyming reduplication form super-duper first attested 1940. Super Bowl attested from 1966; Super Glue from 1975; as a verb by 1983.
Zend (n.)youdaoicibaDictYouDict
1715, "Parsee sacred book" (in full, Zend-Avesta, 1620s), from Old Persian zend, from Pahlavi zand "commentary." First used 1771 in reference to the language of the Zend-Avesta by French scholar Abraham Hyacinthe Anquetil-Duperron (1731-1805).