The Collaborative International Dictionary of English v.0.48:

Gomuti \Go*mu"ti\, n. [Malayan gumuti.]
   A black, fibrous substance resembling horsehair, obtained
   from the leafstalks of two kinds of palms, Metroxylon Sagu,
   and Arenga saccharifera, of the Indian islands. It is used
   for making cordage. Called also ejoo.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gomuti
    n 1: Malaysian feather palm with base densely clothed with
         fibers; yields a sweet sap used in wine and trunk pith
         yields sago [syn: sugar palm, gomuti, gomuti palm,
         Arenga pinnata]