Naut. Also swigg. [Cf. SWIG v.3]

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  1.  A tackle the falls of which are not parallel.

2

1807.  T. Young, Lect. Nat. Philos., II. 197/2. A pulley with ropes not parallel is called by seamen a swigg.

3

1852.  Burn, Naval & Milit. Dict. (1863), Swig. palan.

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  2.  The act of ‘swigging’ at a rope: see SWIG v.3 3.

5

1904.  Westm. Gaz., 9 July, 12/2. Take a swig on those halliards.

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