[1] : The Collaborative International Dictionary of English v.0.48

archipelago \ar`chipel"ago\, n.; pl. -goes or -gos. it.
   arcipelago, properly, chief sea; gr. pref ? + ? sea, perh.
   akin to ? blow, and expressing the beating of the waves. see
   plague.
   1913 webster
   1. the grecian archipelago, or aegean sea, separating
      greece from asia minor. it is studded with a vast number
      of small islands.
      1913 webster

   2. hence: any sea or broad sheet of water interspersed with
      many islands or with a group of islands.
      1913 webster
see also:
-goes -gos plague 

-Gos >> G Words
-Gos, definition of term: -Gos
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