Mastering “Word Roots” for SAT Success

RADI, RAMI – branch

 

radius

radiate

radiant

eradicate

 

ramification

 

 

 

RECT, REG – straight, rule

 

rectangle

rectitude

rectify

regular

REG – king, rule

 

regal

regent

interregnum

 

RETRO – backward

 

retrospective

retroactive

retrograde

 

RID, RIS – laugh

 

ridiculous

deride

derision

 

ROG – ask

 

interrogate

derogatory

abrogate

arrogate

 

arrogant

 

 

 

RUD – rough, crude

 

rude

erudite

rudimentary

 

RUPT – break

 

disrupt

interrupt

rupture