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Adam [Adam 词源字典]: Adam: Adam’s apple [18] The original apple in question was the forbidden fruit of the tree of the knowledge of good and evil, which the serpent in the Garden of Eden tricked Eve into eating, and which she in turn persuaded Adam to eat. It was traditionally believed that a piece of it stuck in Adam’s throat, and so it became an appropriate and convenient metaphor for the thyroid cartilage of the larynx, which protrudes noticeably in men.
[Adam etymology, Adam origin, 英语词源]
Adam's apple: Adam's apple: [18] The original apple in question was the forbidden fruit of the tree of the knowledge of good and evil, which the serpent in the Garden of Eden tricked Eve into eating, and which she in turn persuaded Adam to eat. It was traditionally believed that a piece of it stuck in Adam’s throat, and so it became an appropriate and convenient metaphor for the thyroid cartilage of the larynx, which protrudes noticeably in men.
Adam's apple (n.): 1731, corresponding to Latin pomum Adami, perhaps an inexact translation of Hebrew tappuah haadam, literally "man's swelling," from ha-adam "the man" + tappuah "anything swollen." The reference is to the legend that a piece of the forbidden fruit (commonly believed to be an apple) that Eve gave Adam stuck in his throat. The term is mentioned in early 15c. as the name of an actual oriental and Mediterranean fruit, a variety of lime with an indentation fancied to resemble the marks of Adam's teeth.
apple (n.): Old English æppel "apple; any kind of fruit; fruit in general," from Proto-Germanic *ap(a)laz (cognates: Old Saxon, Old Frisian, Dutch appel, Old Norse eple, Old High German apful, German Apfel), from PIE *ab(e)l "apple" (cognates: Gaulish avallo "fruit;" Old Irish ubull, Lithuanian obuolys, Old Church Slavonic jabloko "apple"), but the exact relation and original sense of these is uncertain (compare melon).
A roted eppel amang þe holen, makeþ rotie þe yzounde. ["Ayenbite of Inwit," 1340]
In Middle English and as late as 17c., it was a generic term for all fruit other than berries but including nuts (such as Old English fingeræppla "dates," literally "finger-apples;" Middle English appel of paradis "banana," c. 1400). Hence its grafting onto the unnamed "fruit of the forbidden tree" in Genesis. Cucumbers, in one Old English work, are eorþæppla, literally "earth-apples" (compare French pomme de terre "potato," literally "earth-apple;" see also melon). French pomme is from Latin pomum "apple; fruit" (see Pomona).
As far as the forbidden fruit is concerned, again, the Quran does not mention it explicitly, but according to traditional commentaries it was not an apple, as believed by Christians and Jews, but wheat. ["The Heart of Islam: Enduring Values for Humanity," Seyyed Hossein Nasr, 2002]
Apple of Discord (c. 1400) was thrown into the wedding of Thetis and Peleus by Eris (goddess of chaos and discord), who had not been invited, and inscribed kallisti "To the Prettiest One." Paris, elected to choose which goddess should have it, gave it to Aphrodite, offending Hera and Athene, with consequences of the Trojan War, etc.

Apple of one's eye (Old English), symbol of what is most cherished, was the pupil, supposed to be a globular solid body. Apple-polisher "one who curries favor" first attested 1928 in student slang. The image of something that upsets the apple cart is attested from 1788. Road apple "horse dropping" is from 1942.
forbid (v.): Old English forbeodan "forbid, prohibit" (past tense forbead, plural forbudon, past participle forboden), from for- "against" + beodan "to command" (see bid (v.)). Common Germanic compound (compare Old Frisian forbiada , Dutch verbieden, Old High German farbiotan, German verbieten, Old Norse fyrirbjoða, Swedish förbjuda, Gothic faurbiudan "to forbid").

In Middle English the past tense was forbad, the plural forbade, the past participle forbode. Related: Forbade; forbidden. Expression God forbid is recorded by early 13c. Forbidden fruit is from Gen. ii:17.