An Etymological Dictionary of the German Language, I (1891)
by Friedrich Kluge, translated by John Francis Davis
Isop
Friedrich Kluge2512371An Etymological Dictionary of the German Language, I — Isop1891John Francis Davis

Isop, m., ‘hyssop,’ from the equiv. early MidHG. isôpe (îsǒpe, ispe); derived like Ital. isópo from Lat. hysôpum, late Gr. ὕτσωπος, which is of Oriental origin.