Trithri·nax | \trīˈthrīˌnaks, ˈtrithrəˌn-\

Definition of Trithrinax 

: a genus of South American fan palms having tough leaves with fibrous spiny sheaths, biconvex petiole, and prominent ligule

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History and Etymology for Trithrinax

New Latin, from tri- + Greek thrinax three-pronged fork, perhaps from thrin- (akin to Latin terni three each) + akmē point, edge; from the form of the leaves

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to reject or criticize sharply

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