An Etymological Dictionary of the German Language, L (1891)
by Friedrich Kluge, translated by John Francis Davis
Losung
Friedrich Kluge2509228An Etymological Dictionary of the German Language, L — Losung1891John Francis Davis

Losung, f., ‘war-cry, watchword,’ from the equiv. late MidHG. losunge, lôȥunge, the first appearance of which in the 15th cent. makes it impossible to determine the correct MidHG. form and its derivation (from Los? or from losen, ‘to hear’? see lauschen).