COMMANDANT
Com`man*dant", n. Etym: [F., orig. p. pr. of commander.]

Defn: A commander; the commanding officer of a place, or of a body of men; as, the commandant of a navy-yard.

COMMANDATORY
Com*mand"a*to*ry, a.

Defn: Mandatory; as, commandatory authority. [Obs.]

COMMANDEER
Com`man*deer", v. t. [imp. & p. p. Commandeered; p. pr. & vb. n.
Commandeering.] [D. kommandeeren to command, in South Africa to
commandeer, fr. F. commander to command. See Command.]

1. (Mil.)

Defn: To compel to perform military service; to seize for military purposes; — orig. used of the Boers.

2. To take arbitrary or forcible possession of. [Colloq.]

COMMANDER
Com*mand"er, n. Etym: [Cf. F. commandeur. Cf. Commodore, Commender.]

1. A chief; one who has supreme authority; a leader; the chief officer of an army, or of any division of it. A leader and commander to the people. Is. lv. 4.