英语词源字典 - 在线词源网站

disorganize (v.)[disorganize 词源字典]: 1793, from French désorganiser, from dés- "not" (see dis-) + organiser "organize" (see organize). This word and related forms were introduced in English in reference to the French Revolution. Related: Disorganized; disorganizing; disorganization.[disorganize etymology, disorganize origin, 英语词源]
hectic (adj.): late 14c., etik (in fever etik), from Old French etique "consumptive," from Late Latin hecticus, from Greek hektikos "continuous, habitual, consumptive" (of a disease, because of the constant fever), from hexis "a habit (of mind or body)," from ekhein "have, hold, continue" (see scheme).

The Latin -h- was restored in English 16c. Sense of "feverishly exciting, full of disorganized activity" first recorded 1904, but hectic also was used in Middle English as a noun meaning "feverish desire, consuming passion" (early 15c.). Hectic fevers are characterized by rapid pulse, among other symptoms. Related: Hecticness.
sheet (n.2): "rope that controls a sail," late 13c., shortened from Old English sceatline "sheet-line," from sceata "lower part of sail," originally "piece of cloth," from same root as sheet (n.1). Compare Old Norse skaut, Dutch schoot, German Schote "rope fastened to a sail."

This probably is the notion in phrase three sheets to the wind "drunk and disorganized," first recorded 1812 (in form three sheets in the wind), an image of a sloop-rigged sailboat whose three sheets have slipped through the blocks are lost to the wind, thus "out of control." Apparently there was an early 19c. informal drunkenness scale in use among sailors and involving one, two, and three sheets, three signifying the highest degree of inebriation; there is a two sheets in the wind from 1813.
It must not be wondered at that the poor, untutored, savage Kentuckyan got "more than two thirds drunk," that is, as the sailors term it, three sheets in the wind and the fourth shivering, before the dinner was ended. [Niles' Weekly Register, May 2, 1812]
scatty: "Absent-minded and disorganized", Early 20th century: abbreviation of scatterbrained.
scatty: "Absent-minded and disorganized", Early 20th century: abbreviation of scatterbrained.