From The Collaborative International Dictionary of English v.0.48:
Sling \Sling\, v. t. [imp. Slung, Archaic Slang; p. p.
Slung; p. pr. & vb. n. Slinging.] [AS. slingan; akin to
D. slingeren, G. schlingen, to wind, to twist, to creep, OHG.
slingan to wind, to twist, to move to and fro, Icel. slyngva,
sl["o]ngva, to sling, Sw. slunga, Dan. slynge, Lith. slinkti
to creep.]
1. To throw with a sling. "Every one could sling stones at an
hairbreadth, and not miss." --Judg. xx. 16.
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2. To throw; to hurl; to cast. --Addison.
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3. To hang so as to swing; as, to sling a pack.
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4. (Naut) To pass a rope round, as a cask, gun, etc.,
preparatory to attaching a hoisting or lowering tackle.
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