adv. (sb.) Sc. [Properly two words: see LONG adv. and SYNE adv.] Long since, long ago. Also sb. esp. in auld lang syne. (Somewhat common in English use with allusion to Burns’s song.)

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1500–20.  Dunbar, Poems, xxiv. 34. I had bene deid langsyne, dowtless.

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1570.  Satir. Poems Reform., xvii. 3. In eirth lang syne yair had been nothing than, Saif only vice.

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a. 1774.  Fergusson, Poems (1807), 309. Hame-o’er langsyne you hae been blithe to pack.

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1788.  Burns, Auld Lang Syne. For auld lang syne, my dear, For auld lang syne, We’ll tak a cup o’ kindness yet, For auld lang syne.

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1820.  Scott, Monast., iv. Like what I hae seen langsyne, when we dwelt at Avenel.

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1841.  Lytton, Nt. & Morn., II. vii. A friend … of the happy lang syne.

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1870.  H. Smart, Race for Wife, ii. In days lang syne.

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