German schäumen

← Middle High German schoumen (inherited)

← Middle High German schemen (mention)

← Middle High German schūmen (mention)

← Proto-West Germanic *skūmijan (inherited)

← Proto-West Germanic *skūm (derived)

← Old High German scūmen (inherited)

← Old High German skūmen (mention)

← German Low German schumen (cognate)

← Dutch schuimen (cognate)

→ Danish skumme (cognate)

→ Polish szumieć (borrowed)

→ Polish szumny (borrowed)