Source : Webster's Revised Unabridged Dictionary (1913)

Shake \Shake\, v. t. [imp. {Shook}; p. p. {Shaken}, ({Shook},
   obs.); p. pr. & vb. n. {Shaking}.] [OE. shaken, schaken, AS.
   scacan, sceacan; akin to Icel. & Sw. skaka, OS. skakan, to
   depart, to flee. [root]161. Cf. {Shock}, v.]
   1. To cause to move with quick or violent vibrations; to move
      rapidly one way and the other; to make to tremble or
      shiver; to agitate.

            As a fig tree casteth her untimely figs, when she is
            shaken of a mighty wind.              --Rev. vi. 13.

            Ascend my chariot; guide the rapid wheels That shake
            heaven's basis.                       --Milton.

   2. Fig.: To move from firmness; to weaken the stability of;
      to cause to waver; to impair the resolution of.

            When his doctrines grew too strong to be shook by
            his enemies, they persecuted his reputation.
                                                  --Atterbury.

            Thy equal fear that my firm faith and love Can by
            his fraud be shaken or seduced.       --Milton.

   3. (Mus.) To give a tremulous tone to; to trill; as, to shake
      a note in music.

   4. To move or remove by agitating; to throw off by a jolting
      or vibrating motion; to rid one's self of; -- generally
      with an adverb, as off, out, etc.; as, to shake fruit down
      from a tree.

            Shake off the golden slumber of repose. --Shak.

            'Tis our fast intent To shake all cares and business
            from our age.                         --Shak.

            I could scarcely shake him out of my company.
                                                  --Bunyan.

   {To shake a cask} (Naut.), to knock a cask to pieces and pack
      the staves.

   {To shake hands}, to perform the customary act of civility by
      clasping and moving hands, as an expression of greeting,
      farewell, good will, agreement, etc.

   {To shake out a reef} (Naut.), to untile the reef points and
      spread more canvas.

   {To shake the bells}. See under {Bell}.

   {To shake the sails} (Naut.), to luff up in the wind, causing
      the sails to shiver. --Ham. Nav. Encyc.

Shaken \Shak"en\, a.
   1. Caused to shake; agitated; as, a shaken bough.

   2. Cracked or checked; split. See {Shake}, n., 2.

            Nor is the wood shaken or twisted.    --Barroe.

   3. Impaired, as by a shock.

Source : WordNet®

shake
     n 1: building material used as siding or roofing [syn: {shingle}]
     2: frothy drink of milk and flavoring and sometimes fruit or
        ice cream [syn: {milkshake}, {milk shake}]
     3: a note that alternates rapidly with another note a semitone
        above it [syn: {trill}]
     4: grasping and shaking a person's hand (as to acknowledge an
        introduction or to agree on a contract) [syn: {handshake},
         {handshaking}, {handclasp}]
     5: reflex shaking caused by cold or fear or excitement [syn: {tremble},
         {shiver}]
     6: causing to move repeatedly from side to side [syn: {wag}, {waggle}]
     [also: {shook}, {shaken}]

shaken
     adj : disturbed psychologically as if by a physical jolt or shock;
           "retrieved his named from her jolted memory"; "the
           accident left her badly shaken" [syn: {jolted}]

shake
     v 1: move or cause to move back and forth; "The chemist shook the
          flask vigorously"; "My hands were shaking" [syn: {agitate}]
     2: move with or as if with a tremor; "his hands shook" [syn: {didder}]
     3: shake or vibrate rapidly and intensively; "The old engine
        was juddering" [syn: {judder}]
     4: move back and forth  or sideways; "the ship was rocking";
        "the tall building swayed"; "She rocked back and forth on
        her feet" [syn: {rock}, {sway}]
     5: undermine or cause to waver; "my faith has been shaken";
        "The bad news shook her hopes"
     6: stir the feelings, emotions, or peace of; "These stories
        shook the community"; "the civil war shook the country"
        [syn: {stimulate}, {shake up}, {excite}, {stir}]
     7: get rid of; "I couldn't shake the car that was following me"
        [syn: {shake off}, {throw off}, {escape from}]
     8: bring to a specified condition by or as if by shaking; "He
        was shaken from his dreams"; "shake the salt out of the
        salt shaker"
     9: shake (a body part) to communicate a greeting, feeling, or
        cognitive state; "shake one's head"; "She shook her finger
        at the naughty students"; "The old enemies shook hands";
        "Don't shake your fist at me!"
     [also: {shook}, {shaken}]

shaken
     See {shake}