[688] δύς-ροος, schwer fließend, Sp.
Adelung-1793: Rooß, das
Brockhaus-1911: Roos
Herder-1854: Roos
Meyers-1905: Roos
Pataky-1898: Roos, Mathilde
Pierer-1857: Roos [2] · Roos [1]