c. 1400, "an order, a command; what is commanded or ordered," from Old French comand (14c.), from comander "to order, to entrust" (see command (v.)). Meaning "control, right or authority to order or compel obedience" is from mid-15c. Meaning "power of control, mastery" (of a situation, a language, etc.) is from 1640s.
late 14c., disposen, "set in order, place in a particular order; give direction or tendency to; incline the mind or heart of," from Old French disposer (13c.) "arrange, order, control, regulate" (influenced in form by poser "to place"), from Latin disponere "put in order, arrange, distribute," from dis- "apart" (see dis-) + ponere "to put, place" (past participle positus; see position (n.)). Related: Disposed; disposing.
1883, "having the nature or character of snakes or serpents," from Greek ophidion, diminutive of ophis "serpent" (see ophio-). Earlier in zoology, "belonging to the order Ophidia" (comprising snakes, serpents), 1819. As a noun, "reptile of the order Ophidia," from 1819.