ANGLO-SAXON PREFIX 5
5. UN-: "not," "lak of," "do the opposite of," "remove or release from"
unabridged not abridged; not made shorter; complete
unbiased not biased; not prejudiced in favor of or against; fair
unconcern lack of concern; anxiety; or interest; indifference
undeceive free from deception; or mistaken ideas; set straight
ungag remove a gag from; release from cencorship
unnerve deprive of nerve or courage; cause to lose self-control; upset
unquenchable not quenchable; not capable of being satisfied; inextinguishable
unscramble do the opposite of scramble; restore to intelligible form
unshackle release from a shackle (anything that confines the legs or arms); set free from restraint
unwary not wary; not alert; heedless