The Collaborative International Dictionary of English v.0.48:

Scullion \Scul"lion\ (sk[u^]l"y[u^]n), n. (Bot.)
   A scallion.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

         The meanest scullion that followed his camp. --South.
   [1913 Webster]

WordNet (r) 3.0 (2006):

scullion
    n 1: a kitchen servant employed to do menial tasks (especially
         washing)

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "scullion":
   dishwasher, dishwiper, domestic, domestic servant, drudge,
   dry cleaner, help, launderer, laundress, laundryman, laundrywoman,
   menial, pot-walloper, scullery maid, servant, servitor, slavey,
   turnspit, washer, washerman, washerwife, washerwoman