Emily Dickinson Lexicon

DOUB'LE, a. [dub'l; Fr. double; Arm. doubl; Sp. doble; Port. dobre; It. doppio; W. dyblyg; D. dubbel; G. doppelt; Dan. dobbelt; Sw. dubbel; L. duplus, duplex; Gr. διπλοος; compounded of duo, two, and plico, to fold, plexus, a fold. See Two.]

1. Two of a sort together; one corresponding to the other; being in pairs; as, double chickens in the same egg; double leaves connected by one petiole.
2. Twice as much; containing the same quantity or length repeated. Take double money in your hand. – Gen. xliii. Let a double portion of thy spirit be on me. 2 Kings ii. With to; as, the amount is double to what I expected.
3. Having one added to another; as, a double chin.
4. Twofold; also, of two kinds. Darkness and tempest make a double night. – Dryden.
5. Two in number; as, double sight or sound. [See No. 1.] – Davies.
6. Deceitful; acting two parts, one openly, the other in secret. And with a double heart do they speak. – Ps. xii.