mid-13c., "to desire or wish for inordinately or without regard for the rights of others," from Old French coveitier "covet, desire, lust after" (12c., Modern French convoiter, influenced by con- words), probably ultimately from Latin cupiditas "passionate desire, eagerness, ambition," from cupidus "very desirous," from cupere "long for, desire" (see cupidity). From mid-14c. in a good sense, "desire or wish for eagerly, desire to obtain or possess." Related: Coveted; coveting.
"much-desired, much sought-after," by 1875, past-participle adjective from covet (v.).
"characterized by illicit desire, lustful," mid-15c., from Latin concupiscentem (nominative concupiscens), present participle of concupiscere "to long for, covet" (see concupiscence).
mid-15c., "lustful, inclined to lust," from Medieval Latin lasciviosus (used in a scolding sense by Isidore and other early Church writers), from Latin lascivia "lewdness, playfulness, fun, frolicsomeness, jolity," from lascivus "lewd, playful, undesigned, frolicsome, wanton."
This is from PIE *las-ko-, from the root *las- "to be eager, wanton, or unruly" (source also of Sanskrit -lasati "yearns," lasati "plays, frolics," Hittite ilaliya- "to desire, covet," Greek laste "harlot," Old Church Slavonic laska "flattery," Slovak laska "love," Russian lasyj "greedy, eager, affectionate," Old Irish lainn "greedy, eager," Gothic lustus, Old English lust "lust").
Meaning "tending to excite lust" is from 1580s. Related: Lasciviously. In 17c. also with a verbal form, lasciviate, now obsolete.
mid-13c., "inordinately desirous to obtain and possess, avaricious," from Old French coveitos "desirous, covetous" (12c., Modern French convoiteux), from Vulgar Latin *cupiditosus, from Latin cupiditas "passionate desire, eagerness, ambition," from cupidus "very desirous," from cupere "long for, desire" (see cupidity). From late 14c. in a good sense, "very desirous, eager to acquire." Related: Covetously; covetousness.
COVETOUSNESS. The desire of possessing more than we have, of any good thing whatsoever of which we have already enough for our uses, (adding house to house, and field to field). It is much connected with pride ; but more with restlessness of mind and desire of novelty ; much seen in children who tire of their toys and want new ones. The pleasure in having things 'for one's very own' is a very subtle element in it. [Ruskin, "Fors Clavigera"]
word-forming element meaning "bad, ill; hard, difficult; abnormal, imperfect," from Greek dys-, inseparable prefix "destroying the good sense of a word or increasing its bad sense" [Liddell & Scott], hence "bad, hard, unlucky," from PIE root (and prefix) *dus- "bad, ill, evil" (source also of Sanskrit dus-, Old Persian duš- "ill," Old English to-, Old High German zur-, Gothic tuz- "un-"), a derivative of the root *deu- (1) "to lack, be wanting" (source of Greek dein "to lack, want").
Very productive in ancient Greek, where it could attach even to proper names (such as dysparis "unhappy Paris"); its entries take up nine columns in Liddell & Scott. Among the words formed from it were some English might covet: dysouristos "fatally favorable, driven by a too-favorable wind;" dysadelphos "unhappy in one's brothers;" dysagres "unlucky in fishing;" dysantiblepos "hard to look in the face."