Three out of four equal parts, three quarters. Hence as advb. phrase, To the extent of three quarters; well-nigh, almost.

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1711.  Swift, Jrnl. to Stella, 30 June. Patrick comes early, and wakes me…, though I am three parts asleep.

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1842.  Borrow, Bible in Spain, vii. 45. He was half-intoxicated, and soon became three-parts so.

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1871.  M. Collins, Mrq. & Merch., x. He rides a three-parts thorough-bred.

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1877.  Browning, La Saisiaz, 72. There’s the stoppage at the inn Three-parts up the mountain.

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1887.  Stevenson, Mem. & Portraits, xv. 250. Conduct is three parts of life, they say; but I think they put it high.

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