Re- (?). [L. re-, older form (retained before vowels) red-: cf. F. re-, r'e-.]
A prefix signifying back, against, again, anew; as, recline, to lean back; recall, to call back; recede; remove; reclaim, to call out against; repugn, to fight against; recognition, a knowing again; rejoin, to join again; reiterate, reassure. Combinations containing the prefix re- are readily formed, and are for the most part of obvious signification.
© Webster 1913.