The Collaborative International Dictionary of English v.0.48:
Reboil \Re*boil"\ (r[=e]*boil"), v. t. & i. [Pref. re- + boil: cf. F. rebouillir.] 1. To boil, or to cause to boil, again. [1913 Webster] 2. Fig.: To make or to become hot. [Obs.] [1913 Webster] Some of his companions thereat reboyleth. --Sir T. Elyot. [1913 Webster]