When a syllable or word is placed before another word, it is called a
prefix. The prefix re generally gives the idea of repetition or return;
as, recall, to call back.
re build’ re ap pear’ re an’i mate
re touch’ re as cend’ re gen’er ate
re seat’ re im burse’ re sus’ci tate
re view’ ro doub’le re ver’ber ate