The Collaborative International Dictionary of English v.0.48:

Soc \Soc\ (s[o^]k), n. [AS. s[=o]c the power of holding court,
   sway, domain, properly, the right of investigating or
   seeking; akin to E. sake, seek. Sake, Seek, and cf.
   Sac, and Soke.] [Written also sock, and soke.]
   1. (O. Eng. Law)
      (a) The lord's power or privilege of holding a court in a
          district, as in manor or lordship; jurisdiction of
          causes, and the limits of that jurisdiction.
      (b) Liberty or privilege of tenants excused from customary
          burdens.
          [1913 Webster]

   2. An exclusive privilege formerly claimed by millers of
      grinding all the corn used within the manor or township
      which the mill stands. [Eng.]
      [1913 Webster]

   Soc and sac (O. Eng. Law), the full right of administering
      justice in a manor or lordship.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sock \Sock\, n. [F. soc, LL. soccus, perhaps of Celtic origin.]
   A plowshare. --Edin. Encyc.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sock \Sock\, n. [OE. sock, AS. socc, fr. L. soccus a kind of
   low-heeled, light shoe. Cf. Sucket.]
   1. The shoe worn by actors of comedy in ancient Greece and
      Rome, -- used as a symbol of comedy, or of the comic
      drama, as distinguished from tragedy, which is symbolized
      by the buskin.
      [1913 Webster]

            Great Fletcher never treads in buskin here,
            Nor greater Jonson dares in socks appear. --Dryden.
      [1913 Webster]

   2. A knit or woven covering for the foot and lower leg; a
      stocking with a short leg.
      [1913 Webster]

   3. A warm inner sole for a shoe. --Simmonds.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sock \Sock\ (s[o^]k), v. t. [Perh. shortened fr. sockdolager.]
   To hurl, drive, or strike violently; -- often with it as an
   object. [Prov. or Vulgar] --Kipling.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

sock
    n 1: hosiery consisting of a cloth covering for the foot; worn
         inside the shoe; reaches to between the ankle and the knee
    2: a truncated cloth cone mounted on a mast; used (e.g., at
       airports) to show the direction of the wind [syn: windsock,
       wind sock, sock, air sock, air-sleeve, wind sleeve,
       wind cone, drogue]
    v 1: hit hard [syn: sock, bop, whop, whap, bonk,
         bash]

Moby Thesaurus II by Grady Ward, 1.0:

104 Moby Thesaurus words for "sock":
   ballet skirt, bang, bash, bat, beating, belt, biff, bladder, blow,
   bonk, bonnet, boot, breech, buskin, cap, cap and bells, chop, clap,
   clip, cloak, clobber, clout, clump, coat, coif, coldcock, costume,
   coxcomb, crack, cut, dash, deal, deal a blow, deck, dig, ding,
   dint, disguise, drub, drubbing, drumming, fetch, fetch a blow,
   frock, fusillade, getup, gown, hat, hit, hit a clip, hood, hose,
   hosiery, jab, jacket, knock, knock cold, knock down, knock out,
   let have it, lick, mantle, masquerade, motley, outfit, paste, pelt,
   plunk, poke, pound, punch, rap, rig, shirt, shoe, slam, slapstick,
   slog, slug, smack, smash, smite, snap, soak, socks, sough,
   stocking, stockings, strike, strike at, stroke, swat, swing, swipe,
   tattoo, thump, thwack, tights, tutu, wallop, whack, wham, whop,
   yerk