The Collaborative International Dictionary of English v.0.48:
reignite \reignite\, re-ignite \re-ignite\v. t. To ignite anew, as of a fire. [WordNet 1.5]WordNet (r) 3.0 (2006):
reignite v 1: ignite anew, as of something burning; "The strong winds reignited the cooling embers"