GNU Collaborative International Dictionary of English

Found one definition 

  1.       

    Amaranth , n. [L. amarantus, Gr. , unfading, amaranth; ἀ priv. +  to quench, cause to wither, fr. a root meaning to die, akin to E. mortal; -- so called because its flowers do not soon wither: cf. F. amarante. The spelling with th seems to be due to confusion with Gr.  flower.]
    1. An imaginary flower supposed never to fade. [Poetic]
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    2. (Bot.) A genus of ornamental annual plants (Amaranthus) of many species, with green, purplish, or crimson flowers.
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    3. A color inclining to purple.
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