Lewis & Short

Stĕphănĭum, ii, f. dim. of Stephane, a character in the Stichus of Plautus, Plaut. Stich. 5, 4, 54 al.
Called also, Stĕphă-niscĭdĭum, ii, f., Plaut. Stich. 5, 4, 57.