mid-15c., "a pouring out, outflow, effusion," from out- + infinitive of pour (v.). From 1757 as "action of pouring out," probably a re-coinage, originally transferred, of things spiritual; sense of "that which is poured out" (again, usually transferred) is from 1827. A verb, outpour "to pour forth," is attested from 1670s.

"to spend, pay out; to consume by use, spend in using," early 15c., expenden, from Latin expendere "pay out, weigh out money," from ex "out, out of" (see ex-) + pendere "to hang, cause to hang; weigh; pay" (from PIE root *(s)pen- "to draw, stretch, spin"). For the financial sense of the Latin verb, see pound (n.1). Related: Expended; expending.

also roll-out, 1957, "action of wheeling out," originally of airplanes, from the verbal phrase; see roll (v.) + out (adv.). As a type of U.S. football play by 1959.

early 15c., in the literal sense, "to draw out, extract; branch out," from Latin educere "to lead out, bring out" (troops, ships, etc.; see educate). Meaning "bring into view or operation" is from c. 1600. Meaning "to draw a conclusion from data" is from 1837.

also out-building, "a detached or subordinate building," 1620s, from out- + building (n.).

mid-15c., from Latin effluentem (nominative effluens) "flowing out," present participle of effluere "to flow out," from assimilated form of ex "out" (see ex-) + fluere "to flow" (see fluent). As a noun, "that which flows out," from 1859; specific meaning "liquid industrial waste" is from 1930.

1757, French, literally "out of combat." Hors (prep.) "out, beyond," is from Latin foris (adv.) "outside," literally "out of doors" (see foreign). De is from Latin de "of." For combat see combat (n.). A similar expression from French is hors concours "out of competition" (1884), of a work of art in an exhibition.

"speak, say," c. 1400, in part from Middle Dutch uteren or Middle Low German utern "to turn out, show, speak," from uter "outer," comparative adjective from ut "out" (see utter (adj.)); in part from Middle English verb outen "to disclose," from Old English utan "to put out," from ut (see out (v.)). Compare German äussern "to utter, express," from aus "out;" and colloquial phrase out with it "speak up!" Formerly also used as a commercial verb (as release is now). Related: Uttered; uttering.

early 15c., "spread out, open out, spread flat, extend widely;" also transitive, "cause to grow larger;" from Anglo-French espaundre, Old French espandre "spread, spread out, be spilled," and directly from Latin expandere "to spread out, unfold, expand," from ex "out" (see ex-) + pandere "to spread, stretch" (from nasalized form of PIE root *pete- "to spread"). Related: Expanded; expanding.

"act of setting out on a journey, business, etc.; a beginning, a setting out," 1759, from out- + set (n.2.); also see set (v.). The earlier word for this was outsetting (1670s).