I will try and add a coupple of definitions to what have been written already. I think, these definitions are close to each other, meanings varied in differeent ages of our history.

Sorcery
Definition: [n] the belief in magical spells that harness occult forces or evil spirits to produce unnatural effects in the world

Sorcerer
conjurer; an enchanter; a magician. --Bacon.
Pharaoh also called the wise men and the sorcerers. --Ex. vii. 11.

from the Latin sortiarius, one who casts lots, or one who tells the lot of others. (See DIVINATION.)

In Dan. 2:2 it is the rendering of the Hebrew mekhashphim, i.e., mutterers, men who professed to have power with evil spirits. The practice of sorcery exposed to severest punishment (Mal. 3:5; Rev. 21:8; 22:15).

Wizard
Definition:
[n] someone who is dazzlingly skilled in any field
[n] one who practices magic or sorcery
Definition:
a pretender to supernatural knowledge and power, "a knowing one," as the original Hebrew word signifies. Such an one was forbidden on pain of death to practise his deceptions (Lev. 19:31; 20:6, 27; 1 Sam. 28:3; Isa. 8:19; 19:3).

Warlock
Definition [n] a male witch or demon

Definition \War"lock\, n. [OE. warloghe a deceiver, a name or the
Devil, AS. w?rloga a belier or breaker of his agreement,
word, or pledge; w?r covenant, troth (aki? to L. verus true;
see {Very}) + loga a liar (in comp.), le['o]gan to lie. See
3d {Lie}.]
A male witch; a wizard; a sprite; an imp. [Written also
{warluck}.] --Dryden.
It was Eyvind Kallda's crew Of warlocks blue, With
their caps of darkness hooded! --Longfellow.
\War"lock\, a.
Of or pertaining to a warlock or warlock; impish. [R.]
Thou shalt win the warlock fight. --J. R. Drak?.

Source - hyperdictionary

"Endure. In enduring, grow strong." -Githzerai adage.