Yours, Etc.: Origins and Uses of 8 Sign-Offs
1560s, "an ellipse," from Latin ellipsis, from Greek elleipsis "a falling short, defect, ellipse," from elleipein "to fall short, leave out," from en- "in" + leipein "to leave" (see relinquish). Grammatical sense first recorded 1610s.
A punctuation mark (&ellipsis;) used most often within quotations to indicate that something has been left out. For example, if we leave out parts of the above definition, it can read: “A punctuation mark (&ellipsis;) used most often &ellipsis; to indicate&ellipsis4;”
figure of speech characterized by the deliberate omission of a word or words that are, however, understood in light of the grammatical context. The device is exemplified in W.H. Auden's poem "This Lunar Beauty": But this was neverA ghost's endeavorNor finished this,Was ghost at ease;And till it passLove shall not nearThe sweetness hereNor sorrow takeHis endless look.