SWOON

faint, swoon, syncope, deliquium

(noun) a spontaneous loss of consciousness caused by insufficient blood to the brain

faint, conk, swoon, pass out

(verb) pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain

Source: WordNet® 3.1

Etymology 1

Noun

swoon (plural swoons)

A faint.

An infatuation.

Etymology 2

Verb

swoon (third-person singular simple present swoons, present participle swooning, simple past and past participle swooned) (intransitive)

(literally) To faint, to lose consciousness.

Synonyms: black out, faint, pass out

(by extension) To be overwhelmed by emotion, especially infatuation.

To make a moan, sigh, or some other sound expressing infatuation or affection.

Source: Wiktionary

Swoon, v. i. [imp. & p. p. Swooned; p. pr. & vb. n. Swooning.] Etym: [OE. swounen, swoghenen, for swo, fr. swo to sigh deeply, to droop, AS. swogan to sough, sigh; cf. geswogen senseless, swooned, geswowung a swooning. Cf. Sough.]

Definition: To sink into a fainting fit, in which there is an apparent suspension of the vital functions and mental powers; to faint; -- often with away. The sucklings swoon in the streets of the city. Lam. ii. 11. The most in years . . . swooned first away for pain. Dryden. He seemed ready to swoon away in the surprise of joy. Tatler.

Swoon, n.

Definition: A fainting fit; syncope.

Source: Webster’s Unabridged Dictionary 1913 Edition