Prefix AB and ABS means away, from, separation

The GRE words having the prefix ab and abs are

Word	Meaning
Abdicate	To give up; as, abdicate a throne
Abduct	To lead away by force, kinship
Aberration	Act of wandering away , unsoundness of mind (abnormal ; deviant)
Abhor	To turn away from; loathe; (detest ; hate)
Abjure	To swear away; renounce
Ablution	The act of washing away; often in a rite
Abnegate	To relinquish; give up forever (renunciation ; self-sacrifice)
Abnormal	Away from normal; aberrant
Abolish	Do away with; completely destroy
Abrasion	A rubbing or scraping away
Abrogate	To repel; to do away with (abolish)
Abscond	To steal away and hide; to decamp
Absolve	To free from blame; exonerate (pardon)
Abstain	Hold off from; restrain from eating or drinking
Abstract	Draw away; separate from association (not concrete ; not representational)

Vocabulary make easy

Here is a list of GRE words having secondary meaning.

Word	Popular meaning	Secondary meaning
Affected	Influenced	Artificial Pretend Assume in order to impress
Amazon	Forest in south America	Female warrior
Angular	Sharp cornered	Stiff in manner
Caustic	Burning	Sarcastically biting
Cataract	Eye abnormality	Waterfall
Cipher	Non entity Worthless person	Secret code
Chisel	Wedge like tool for cutting Cut with a chisel	Swindle or cheat
Conservatory	A place of conservation	School of fine Arts(music/drama)
Gadfly	Animal biting fly	An irritating person
Hermetic	Sealed by fusion so as to be airtight	Obscure and mysterious Occult
Husband	Married man	Use sparingly Conserve Save
Import	To get commodities from abroad	Significance
Incense	Smoke from Sweet smelling Aromatic substance	Enrage Infuriate
List	Name of persons or things written in order	Tilt Lean over
Mannered	Having manners	Affected Not natural
Low	Not far above the ground	Mow
Peon	Messenger of an office/bond servant	Landless agriculture Labor
Pore	Tiny opening	Study industriously Ponder Scrutinize
Sap	Vital plant juice	Diminish Undermine
Scurvy	Disease of gum caused by vitamin C deficiency	Despicable Contemptible
Singular	Indicating one person	Unique Odd Extraordinary
Taper	Become progressively narrower	Candle
Wax	Secretion of plant / animal	Increase Grow