also misdemeanour, late 15c., "ill-behavior, evil conduct, fault," but almost always used in the legal sense of "an indictable offense of less grave nature than a felony;" from mis- (1) "wrong" + Middle English demenure "conduct, management" (see demeanor). Related: Misdemeanors; misdemeanours. Misdemean "behave ill, conduct (oneself) improperly" is from French (and from mis- (2)), but it is attested only from 1560s and is too late to be the source of this word.
"low spirits; dull, gloomy state of mind," 1520s, plural of dumpe "a fit of musing," of uncertain origin, possibly from Dutch domp "haze, mist," from Middle Dutch damp "vapor" (see damp (n.)). Compare vapors under vapor.
The application of this term to an affection of the mind is a part of the medical theory which attributed all disorders of the frame to a humour falling on the part affected, and regarded mental disorders especially as produced by a vapour rising from the stomach into the brain. [Hensleigh Wedgwood, "A Dictionary of English Etymology," 1859]
"what leads one to a bad state or condition," 1867, coined by John Ruskin from ill (adv.) on model of wealth (also see -th (2)).
[S]uch things, and so much of them as he can use, are, indeed, well for him, or Wealth; and more of them, or any other things, are ill for him, or Illth. [Ruskin, "Munera Pulveris"]
1922, verbal noun from broadcast (v.).
Broadcasting, as distinct from wireless communication, may be said to have come into being about 1920. It may be defined as the systematic diffusion, by radio telephony, of music, lectures, drama, humour, news and information bulletins, speeches and ceremonies, pictures and other matter susceptible of appreciation by a scattered audience, individually or in groups, with appropriate receiving apparatus. [Encyclopedia Britannica, 1929]
1751, of composition, "severe, ill-natured," literally "in the style of Archolochus" (Latinized from Greek Arkhilokos), famed poet and satirist of Paros (c. 700 B.C.E.). Also of his characteristic verse forms.