(sal′ō) adjective
Of an unhealthy yellowish color: said chiefly of the human skin. [OE salo]
—sal′low·ish adjective
—sal′low·ly adverb
—sal′low·ness noun

(sal′ō) noun
1. A European willow with less flexible shoots than the osiers, especially the goat willow (Salix caprea), sometimes called the great sallow, and the gray sallow (S. caprea cinerea).
2. An osier; a willow shoot. [OE sealh]