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seaware

[see-wair]
noun
  1. seaweed, especially coarse, large seaweed, used chiefly as a fertilizer.

Origin of seaware

before 1000; Old English sǣwār, equivalent to sǣ sea + wār seaweed (not recorded in ME)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for seaware

seaware

noun
  1. any of numerous large coarse seaweeds, esp when cast ashore and used as fertilizer

Word Origin for seaware

Old English sǣwār, from sǣ sea + wār seaweed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012