Source : Webster's Revised Unabridged Dictionary (1913)

Scullion \Scul"lion\, n. [OF. escouillon (Cot.) a dishclout,
   apparently for escouvillon, F. ['e]couvillon a swab; cf. also
   OF. souillon a servant employed for base offices. Cf.
   {Scovel}.]
   A servant who cleans pots and kettles, and does other menial
   services in the kitchen.

         The meanest scullion that followed his camp. --South.

Scullion \Scul"lion\, n. (Bot.)
   A scalion.

Source : WordNet®

scullion
     n : a kitchen servant employed to do menial tasks (especially
         washing)