Defn: To dye again or twice over.
To double-dye their robes in scarlet. J. Webster.

DOUBLE-DYED
Dou"ble-dyed`, a.

Defn: Dyed twice; thoroughly or intensely colored; hence; firmly fixed in opinions or habits; as, a double-dyed villain.

DOUBLE-ENDER Dou"ble-end"er, n. (a) (Naut.) A vessel capable of moving in either direction, having bow and rudder at each end. (b) (Railroad)

Defn: A locomotive with pilot at each end. Knight.

DOUBLE-ENTENDRE
Dou"ble-en*ten"dre, n. Etym: [F. double double + entendre to mean.
This is a barbarous compound of French words. The true French
equivalent is double entente.]

Defn: A word or expression admitting of a double interpretation, one of which is often obscure or indelicate.

DOUBLE-EYED
Dou"ble-eyed`, a.

Defn: Having a deceitful look. [R.] "Deceitful meanings is double- eyed." Spenser.

DOUBLE-FACED
Dou"ble-faced`, a.