Source : Webster's Revised Unabridged Dictionary (1913)

Succotash \Suc"co*tash\, n. [Narragansett Indian m'sickquatash
   corn boiled whole.]
   Green maize and beans boiled together. The dish is borrowed
   from the native Indians. [Written also {suckatash}.]

Source : WordNet®

succotash
     n : fresh corn and lima beans with butter or cream