1550s, from ill (adv.) + gotten.

"blustering braggart," from the name of a boastful character in Ben Jonson's "Every Man in his Humour" (1598).

"in an ill manner," 1540s, from ill (adj.) + -ly (2). Correctly formed but seldom used; simple ill generally serving as the adverb.

"the character of being ill-disposed toward another or others; ill-will, malice, personal hatred," mid-15c., from Old French malevolence and directly from Latin malevolentia "ill-will, dislike, hatred," from malevolentem (nominative malevolens) "ill-disposed, wishing ill, spiteful, envious," from male "badly" (see mal-) + volentem (nominative volens), present participle of velle "to wish" (see will (v.)) 

"ill-humor," 1727, in humps and grumps "surly remarks," later the grumps "a fit of ill-humor" (1844), then "a person in ill humor" (1900); perhaps an extended sense of grum "morose, surly," which probably is related to Danish grum "cruel;" or perhaps suggested by grumble, grunt, etc.

c. 1200, sikenen, "to become ill," from sick (adj.) + -en (1). Transitive sense of "to make sick, affect with illness" is recorded from 1610s. Related: Sickened; sickening. The earlier verb in Middle English was simply sick (Old English seocan) "be ill, fall ill." It is attested by 1825 as "affect with loathing or disgust."

"suit ill, be unfitting," 1520s, from mis- (1) "badly, wrongly" + become.

"ill will excited by some special cause," late 15c., from grudge (v.).

mid-14c., "resentfully, in anger; ill-temperedly," from angry + -ly (2).

mid-13c., "harboring ill-will, enmity, or hostility," from Old French malicios "showing ill will, spiteful, wicked" (Modern French malicieux), from Latin malitiosus "wicked, malicious," from malitia "badness, ill will, spite," from malus "bad, unpleasant" (see mal-). In legal use (early 14c., Anglo-French), it means "characterized by malice prepense" (see malice).