also co-ordination, c. 1600, "orderly combination," from French coordination (14c.) or directly from Medieval Latin coordinationem (nominative coordinatio), noun of action from past-participle stem of Latin coordinare "to set in order, arrange," from co- "with, together" (see com-) + ordinatio "arrangement," from ordo "row, rank, series, arrangement" (see order (n.)). Meaning "action of setting in order" is from 1640s; that of "harmonious adjustment or action," especially of muscles and bodily movements, is from 1855.

"being beyond or out of the common order or rule; not of the usual, customary, or regular kind," early 15c., from Latin extraordinarius "out of the common order," from extra ordinem "out of order," especially the usual order, from extra "out" (see extra-) + ordinem, accusative of ordo "row, rank, series, arrangement" (see order (n.)).

Of officials, etc., "outside of or in addition to the regular staff," often "temporarily employed for a specific purpose," from 1580s. Also from 1580s in the sense of "remarkable, uncommon, rare, wonderful." Related: Extraordinarily; extraordinariness.

1875, from mail (n.1) + order. Before television and the internet, the bane of retailers and shop-owners.

The origin, foundation and principle of mail order trading is universally recognized as wrong. It was conceived in iniquity and brought forth in despair as the world's greatest destructive medium. Mail Order Trading was born in the brain of knaves and thieves who fired their building for insurance profits, then sold the salvaged and damaged stock to the unsuspecting sons of man in distant territory. [Thomas J. Sullivan, "Merchants and Manufacturers on Trial," Chicago, 1914]

1802, "an order, payable on sight, issued at one post office and payable at another," from money + order (n.) in the business sense.

c. 1300, ordeinen, "to appoint or admit to the ministry of the Church," also "to decree, enact," from stem of Old French ordener "place in order, arrange, prepare; consecrate, designate" (Modern French ordonner) and directly from Latin ordinare "put in order, arrange, dispose, appoint," from ordo (genitive ordinis) "row, rank, series, arrangement" (see order (n.)). The notion is "to confer holy orders upon." Sense of "establish, set (something) that will continue in a certain order" is from early 14c. Related: Ordained; ordaining.

1570s, "arranged in order," from order (n.) + -ly (1). Meaning "observant of rule or discipline, not unruly" is from 1590s. Related: Orderliness.

late 15c., "in due order, duly, properly," from order + -ly (2).

c. 1400, "regular, ordinary; well-regulated, proper," from Old French ordinel and directly from Late Latin ordinalis "showing order, denoting an order of succession," from Latin ordo (genitive ordinis) "row, series" (see order (n.)). Meaning "marking the place or position of an object in an order or series" is from 1590s.

c. 1300, ordinaunce, "an authoritative direction, decree, or command" (narrower or more transitory than a law), from Old French ordenance (Modern French ordonnance) or directly from Medieval Latin ordinantia, from Latin ordinantem (nominative ordinans), present participle of ordinare "put in order," from ordo (genitive ordinis) "row, rank, series, arrangement" (see order (n.)). By early 14c. senses had emerged of "arrangement in ranks or rows" (especially in order of battle), also "warlike provisions, equipment" (a sense now in ordnance).