The Collaborative International Dictionary
Subfuscous
Subfuscous \Sub*fus"cous\, a. [L. subfuscus, suffuscus. See Sub-, and Fuscous.] Duskish; dusky; moderately dark; brownish; tawny.
Syn: subfusc[1].
Wiktionary
subfuscous
a. duskish; moderately dark; tawny