A vocabulary of landscape — a landscape of words
1323 entries
fuscous
Fuscous means a dark grayish brown, dusky and without warmth in it. It is a technical color term rather than an ordinary one, used mostly in describing birds, insects, and fungi, where a specific brown has to be separated from a dozen others. The fuscous flycatcher and the fuscous honeyeater both carry it.
Etymology
The word is Latin for dark or dusky, and it is a relative of the English dusk, which arrived by a different route from the Germanic side. So English has two descendants of the same very old idea, one of them a plain everyday word for the end of the day and the other a specialist word for a shade of brown, and they do not look related at all.
Notes
It sits in the same set as cinereous for ash gray and ferruginous for rust. Ornithologists rely on these because ordinary English runs out of browns almost immediately, and a bird description that says brown twice has said nothing.