re-, red-
(Latin: back, backward, again; used as a prefix)
refugee
Someone who flees for refuge or safety; especially, to a foreign country, as in time of political upheaval, war, etc.
refuse
1. To declare a decision or intention not to do something.
2. To decline to accept something offered; for example, the man refused the alcoholic drink.
3. To be unwilling to give, allow, or to agree to something asked for by somebody: "I refused to listen to the man as he complained on and on."
4. Etymology: from Old French refuser which came from Latin refusare, refundere "to pour back, to give back".
refute
regenerate
regress
regression
reject
rejection
rejoin
rejuvenate
1. To make someone become, feel, or appear to be young again.
2. To restore something to its condition when it was new, or to make it more vigorous, dynamic, and effective.
3. To restore to a former state; to make fresh or new again: "He was able to rejuvenate our old dining room table."
rejuvenation
1. The act of restoring to a more youthful condition.
2. The phenomenon of vitality and freshness being restored to a person, a situation, or condition.
rejuvenator
1. Someone who aids people or things back to a youthful condition or to a prior normal situation.
2. Anyone who restores to a former more youthful state or makes (someone or something) fresh or new again.
relax
1. To spend time resting or doing things for pleasure, especially in contrast to or as a relief from the effort and stress of everyday life.
2. To become, or make someone or something, less anxious, hostile, defensive, or formal.
3. To slacken something that is tensed or tight, e.g. a muscle or a grip on something, or to become looser, less tense, or less tight.
reluctant
1. Unwilling to become involved: "The boys were reluctant to socialize with the new student."
2. Not eager: "They were reluctant to help the drunk."
3. Unwillingness to do something which is contrary to one's custom.
4. Not very willing to do something and therefore slow to do it.
remedial
Curative, acting as a remedy.