catty-cornered (adj., adv.)youdaoicibaDictYouDict[catty-cornered 词源字典]
1838, earlier cater-cornered (1835, American English), from now-obsolete cater "to set or move diagonally" (1570s), from Middle French catre "four," from Latin quattuor (see four). Compare carrefour.[catty-cornered etymology, catty-cornered origin, 英语词源]