The Collaborative International Dictionary of English v.0.48:

Relume \Re*lume"\ (r?-l?m"), v. t. [imp. & p. p. Relumed
   (-l?md"); p. pr. & vb. n. Reluming.] [OF. relumer (cf. F.
   rallumer), L. reluminare; pref. re- re- + luminare to light.
   Cf. Reillume.]
   To rekindle; to light again.
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         Relumed her ancient light, not kindled new. --Pope.
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         I know not where is that Promethean heat
         That can thy light relume.               --Shak.
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