\Scum"mer\, v. i.
To scumber. [Obs.] --Holland.

\Scum"mer\, n.
Excrement; scumber. [Obs.]

\Scum"mer\, n. [Cf. OF. escumoire, F. ['e]cumoire. See
{Scum}, and cf. {Skimmer}.]
An instrument for taking off scum; a skimmer.