Root Words MP3+4

AP English Marking Period 3 and 4 root mandatory and enrichment words

euphoria

A feeling or state of intense excitement and happiness.

euthanasia

The act of intentionally ending a person's life to relieve suffering.

euphonious

Pleasant to hear; having a nice sound.

euphoric

Characterized by or feeling intense excitement and happiness.

eulogy

A speech or piece of writing that praises someone highly, typically someone who has just died.

euphemism

A mild or indirect word or expression substituted for one considered to be too harsh or blunt.

isocracy

A form of government in which all individuals have equal political power.

isometric

Relating to or denoting muscular action in which tension is developed without contraction.

isochromatic

Having the same color or colors.

isosceles

Having two sides of equal length.

isogenous

Originating from the same source.

isodynamic

Relating to or denoting equal force or power.

isopod

A type of crustacean with a segmented body and jointed legs.

isostasy

A state of gravitational equilibrium between the Earth's lithosphere and asthenosphere.

isotherm

A line on a map connecting points of equal temperature.

noxious

Harmful, poisonous, or very unpleasant.

nuisance

A person, thing, or circumstance causing inconvenience or annoyance.

pernicious

Having a harmful effect, especially in a gradual or subtle way.

Internecine

Destructive to both sides in a conflict; mutually ruinous.

objective

Not influenced by personal feelings or opinions in considering and representing facts.

obverse

The side of a coin or medal bearing the principal design.

obstacle

A thing that blocks one's way or prevents or hinders progress.

obloquy

Strong public criticism or verbal abuse.

obstruct

To block or impede the progress of something.

obtuse

Annoyingly insensitive or slow to understand.

obsess

To preoccupy or fill the mind of someone continually.

obstetrics

The branch of medicine and surgery concerned with childbirth and the care of women giving birth.

obituary

A notice of a death, especially in a newspaper, typically including a brief biography of the deceased.

obliterate

To destroy utterly; wipe out.

obdurate

Stubbornly refusing to change one's opinion or course of action.

obfuscate

To deliberately make something difficult to understand.

oblong

Having an elongated shape, typically rectangular.

omit

To leave out or exclude someone or something.

oppress

To keep (someone) in subservience and hardship, especially by the unjust exercise of authority.

occlude

To stop, close up, or obstruct.

occult

Relating to magical, mystical, or supernatural phenomena.

offend

To cause to feel upset, annoyed, or resentful.

offer

To present or proffer something for someone to accept or reject.

oppose

To disapprove of and attempt to prevent, especially by argument.

Opprobrium

Harsh criticism or censure.

hypnosis

A state of consciousness in which a person loses the power of voluntary action and is highly responsive to suggestion.

osmosis

The process of gradual or unconscious assimilation of ideas, knowledge, etc.

metamorphosis

A change of the form or nature of a thing or person into a completely different one.

Neurosis

A relatively mild mental illness that is not caused by organic disease.

preside

To be in a position of authority at a meeting or gathering.

precursor

A person or thing that comes before another of the same kind.

precaution

A measure taken in advance to prevent something dangerous, unpleasant, or inconvenient from happening.

preamble

A preliminary or preparatory statement; an introduction.

prearrange

To arrange or organize something in advance.

precede

To come before something in time.

preclude

To prevent from happening; make impossible.

predict

To say or estimate that a specified thing will happen in the future.

predilection

A preference or special liking for something; a bias in favor of something.

predominate

To be the strongest or main element.

preempt

To take action in order to prevent something from happening.

preface

An introduction to a book, typically stating its subject, scope, or aims.

prehistoric

Relating to or denoting the period before written records.

premature

Occurring or done before the usual or proper time.

premeditate

To think out, plan, or consider beforehand.

premonition

A strong feeling that something is about to happen, especially something unpleasant.

preoccupy

To dominate or engross the mind of someone.

preponderate

To be greater in number, influence, or importance.

presage

To be a sign or warning that something will happen.

presentiment

An intuitive feeling about the future, especially one of foreboding.

presume

To suppose that something is the case on the basis of probability.

prevail

To prove more powerful than opposing forces.

revert

To return to a previous state, condition, or practice.

recede

To go or move back or further away from a previous position.

Retract

To draw back or withdraw.

remain

To continue to exist, especially after other similar people or things have ceased to do so.

relinquish

To voluntarily cease to keep or claim; give up.

Relic

An object surviving from an earlier time, especially one of historical or sentimental interest.

retrocede

To go back or return to a previous state.

retrograde

Moving backward; having a backward motion.

retrogress

To return to an earlier state, typically a worse one.

retrospect

A survey or review of past events.

Retroversion

The act of turning back or reversing.

interpose

To place or insert between one thing and another.

interject

To say something abruptly, especially as an interruption.

intermediary

A person who acts as a link between people in order to try to bring about an agreement.

interstice

An intervening space, especially a very small one.

intersperse

To scatter among or between other things.

interrogate

To ask questions of someone, often in a formal manner.

interset

To set or place between.

Intercept

To stop or seize something while it is on its way from one place to another.

malice

The intention or desire to do evil; ill will.

malefactor

A person who commits a crime or some other wrong.

malevolent

Having or showing a wish to do evil to others.

maladroit

Ineffective or bungling; clumsy.

malodorous

Having an unpleasant smell.

malign

To speak about someone in a spitefully critical manner.

malaise

A general feeling of discomfort, illness, or unease.

malformation

A deformity or abnormality in the structure of a body part.

malcontent

A person who is dissatisfied and rebellious.

malpractice

Improper, illegal, or negligent professional behavior.

malfunction

To fail to function normally or satisfactorily.

malediction

A curse; the utterance of a curse.

malignant

Very virulent or infectious; malevolent.

Malnutrition

Lack of proper nutrition, caused by not having enough to eat or not eating enough of the right things.

paucity

The presence of something in only small or insufficient quantities.