old-maidyyoudaoicibaDictYouDict[old-maidy 词源字典]
"= old-maidish", Late 19th cent.; earliest use found in ‘Mark Twain’ (1835–1910), author and lecturer (real name Samuel Langhorne Clemens). From old maid + -y.[old-maidy etymology, old-maidy origin, 英语词源]