The Collaborative International Dictionary of English v.0.48:

Arere \A*rere"\, v. t. & i.
   See Arear. [Obs.] --Ellis.
   [1913 Webster]

WordNet (r) 3.0 (2006):

arere
    n 1: large west African tree having large palmately lobed leaves
         and axillary cymose panicles of small white flowers and
         one-winged seeds; yields soft white to pale yellow wood
         [syn: obeche, obechi, arere, samba, Triplochiton
         scleroxcylon]