Lewis & Short

summāno (subm-), āre, v. a. and n [sub-mano].

  1. I. Neutr., to glide or trickle under, Vitr. 8, 1, 2.
  2. II. Act., to wet somewhat: vestimenta mea, ubi obdormivi ebrius, Summano (with a play on the name Summanus, i. e. Pluto), Plaut. Curc. 3, 46 (v. the passage in connection).