DECALOGUE
Dec"a*logue, n. Etym: [F. décalogue, L. decalogus, fr. Gr. Ten.]

Defn: The Ten Commandments or precepts given by God to Moses on Mount
Sinai, and originally written on two tables of stone.

DECAMERON
De*cam"e*ron, n. Etym: [It. decamerone, fr. Gr. décaméron.]

Defn: A celebrated collection of tales, supposed to be related in ten days; — written in the 14th century, by Boccaccio, an Italian.

DECAMETER; DECAMETRE
Dec"a*me`ter, Dec"a*me`tre, n. Etym: [F. décamètre; Gr. mètre. See
Meter.]

Defn: A measure of length in the metric system; ten meters, equal to about 393.7 inches.

DECAMP
De*camp", v. i. [imp. & p. p. Decamped; p. pr. & vb. n. Decamping.]
Etym: [F. décamper; pref. dé- (L. dis) + camp camp. See Camp.]

1. To break up a camp; to move away from a camping ground, usually by night or secretly. Macaulay.

2. Hence, to depart suddenly; to run away; — generally used disparagingly. The fathers were ordered to decamp, and the house was once again converted into a tavern. Goldsmith.

DECAMPMENT
De*camp"ment, n. Etym: [Cf. F. décampement.]