1905, "of an indefinite number," originally Morse code slang for "dash," influenced by association with numerals such as twenty, thirty, etc.

Online Etymology Dictionary, © 2010 Douglas Harper

Examples from the Web for umpty

Historical Examples of umpty

  • And without the aid of a guide we located this Umpty Umpt street.

    Torchy As A Pa

    Sewell Ford

  • But writing reminiscences of Umpty Squadron's early days is a melancholy business.

  • Over there a formation of A flight, Umpty Squadron, will perhaps be droning back from a hundred-mile reconnaissance.