1. (Bookbinding) The lining of a book cover, esp. one of unusual sort, as of tooled leather, painted vellum, rich brocade, or the like.
2. (Paleon.) The reflexed margin of the trilobite carapace.
DOUBLY
Dou"bly, adv.
1. In twice the quantity; to twice the degree; as, doubly wise or good; to be doubly sensible of an obligation. Dryden.
2. Deceitfully. "A man that deals doubly." Huloet.
DOUBT Doubt, v. i. [imp. & p. p. Dou; p. pr. & vb. n. Doubting.] Etym: [OE. duten, douten, OF. duter, doter, douter, F. douter, fr. L. dubitare; akin to dubius doubtful. See Dubious.]
1. To waver in opinion or judgment; to be in uncertainty as to belief respecting anything; to hesitate in belief; to be undecided as to the truth of the negative or the affirmative proposition; to b e undetermined. Even in matters divine, concerning some things, we may lawfully doubt, and suspend our judgment. Hooker. To try your love and make you doubt of mine. Dryden.
2. To suspect; to fear; to be apprehensive. [Obs.]
Syn. — To waver; vacillate; fluctuate; hesitate; demur; scruple; question.
DOUBT
Doubt, v. t.