successful adj.

1530s, "result, outcome," from Latin successus "an advance, a coming up; a good result, happy outcome," noun use of past participle of succedere "come after, follow after; go near to; come under; take the place of," also "go from under, mount up, ascend," hence "get on well, prosper, be victorious," from sub "next to, after" (see sub-) + cedere "go, move" (from PIE root *ked- "to go, yield"). Meaning "accomplishment of desired end" (good success) first recorded 1580s. Meaning "a thing or person which succeeds," especially in public, is from 1882.

The moral flabbiness born of the bitch-goddess SUCCESS. That — with the squalid interpretation put on the word success — is our national disease. [William James to H.G. Wells, Sept. 11, 1906]

Success story is attested from 1902. Among the French phrases reported by OED as in use in English late 19c. were succès d'estime "cordial reception given to a literary work out of respect rather than admiration" and succès de scandale "success (especially of a work of art) dependent upon its scandalous character."

word-forming element attached to nouns (and in modern English to verb stems) and meaning "full of, having, characterized by," also "amount or volume contained" (handful, bellyful); from Old English -full, -ful, which is full (adj.) become a suffix by being coalesced with a preceding noun, but originally a separate word. Cognate with German -voll, Old Norse -fullr, Danish -fuld. Most English -ful adjectives at one time or another had both passive ("full of x") and active ("causing x; full of occasion for x") senses.

It is rare in Old English and Middle English, where full was much more commonly attached at the head of a word (for example Old English fulbrecan "to violate," fulslean "to kill outright," fulripod "mature;" Middle English had ful-comen "attain (a state), realize (a truth)," ful-lasting "durability," ful-thriven "complete, perfect," etc.).

1610s, from un- (1) "not" + successful (adj.). Related: Unsuccessfully. A noun unsuccess "lack of success" is recorded from 1580s.