ATRAMENTACEOUS
At`ra*men*ta"ceous, a. Etym: [L. atramentum ink, fr. ater black.]
Defn: Black, like ink; inky; atramental. [Obs.] Derham.
ATRAMENTAL; ATRAMENTOUS
At`ra*men"tal, At`ra*men"tous, a.
Defn: Of or pertaining to ink; inky; black, like ink; as, atramental galls; atramentous spots.
ATRAMENTARIOUS
At`ra*men*ta"ri*ous, a. Etym: [Cf. F. atramentaire. See
Atramentaceous.]
Defn: Like ink; suitable for making ink. Sulphate of iron (copperas, green vitriol) is called atramentarious, as being used in making ink.
ATREDE
At*rede, v. t. Etym: [OE. at (AS. æt) out + rede.]
Defn: To surpass in council. [Obs.]
Men may the olde atrenne, but hat atrede. Chaucer.
ATRENNE
At*renne", v. t. Etym: [OE. at + renne to run.]
Defn: To outrun. [Obs.] Chaucer.