Etymology
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Words related to disarticulate

dis- 
Origin and meaning of dis-

word-forming element of Latin origin meaning 1. "lack of, not" (as in dishonest); 2. "opposite of, do the opposite of" (as in disallow); 3. "apart, away" (as in discard), from Old French des- or directly from Latin dis- "apart, asunder, in a different direction, between," figuratively "not, un-," also "exceedingly, utterly." Assimilated as dif- before -f- and to di- before most voiced consonants.

The Latin prefix is from PIE *dis- "apart, asunder" (source also of Old English te-, Old Saxon ti-, Old High German ze-, German zer-). The PIE root is a secondary form of *dwis- and thus is related to Latin bis "twice" (originally *dvis) and to duo, on notion of "two ways, in twain" (hence "apart, asunder").

In classical Latin, dis- paralleled de- and had much the same meaning, but in Late Latin dis- came to be the favored form and this passed into Old French as des-, the form used for compound words formed in Old French, where it increasingly had a privative sense ("not"). In English, many of these words eventually were altered back to dis-, while in French many have been altered back to de-. The usual confusion prevails.

As a living prefix in English, it reverses or negatives what it is affixed to. Sometimes, as in Italian, it is reduced to s- (as in spend, splay, sport, sdain for disdain, and the surnames Spencer and Spence).

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articulate (adj.)

1580s in the speech sense, "divided into distinct parts," hence "clear, distinct" (1570s as "set forth in articles"), from Latin articulatus "separated into joints" (see articulate (v.)). Compare Latin articulatim (adv.) "distinctly, in clear sequence." The physical meaning "composed of segments united by joints" in English is from c. 1600. The general sense of "speaking accurately" is short for articulate-speaking (1829). Related: Articulately.

articulate (v.)

1590s, "to divide speech into distinct parts" (earlier in a now-obsolete sense "to formally bring charges against," 1550s), from Latin articulatus, past participle of articulare "to separate into joints," also "to utter distinctly," from articulus "a part, a member, a joint" (see article).

The generalized sense of "express in words" is from 1690s. In a physical sense, "to join, to attach by joints," it is attested from 1610s. The earlier meaning "set forth in articles" (1560s) now is obsolete or nearly so. Related: Articulated; articulating.

disarticulation (n.)

"action of disarticulating; amputation at a joint," 1808, noun of action from disarticulate (v.).