Etymology · Proto-Indo-European
*ǵʰelh₃wós
1 English words descend from Proto-Indo-European *ǵʰelh₃wós, most common first.
- gelbstoffThe optically measurable component of dissolved organic matter in water, which primarily occurs naturally from tannin released from decaying detritus. As the amount of organic matter increases, it causes the water to appear green, yellow-green, and then brown.