Source : Webster's Revised Unabridged Dictionary (1913)

Erythrean \Er`y*thre"an\, Erythraean \Er`y*thr[ae]"an\, a. [L.
   erythraeus; Gr. ?, fr. 'eryqro`s red.]
   Red in color. ``The erythrean main.'' --Milton.