Swoon

v. i.	1.	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. [imp. & p. p. Swooned ; p. pr. & vb. n. Swooning.] 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.
n.	1.	A fainting fit; syncope.

Noun	1.	swoon - a spontaneous loss of consciousness caused by insufficient blood to the brain Synonyms: deliquium, faint, syncope
Verb	1.	swoon - pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain Synonyms: faint, pass out, conk

KO, black out, blackout, catalepsy, catatonia, catatony, coma, crap out, die away, drop, drown, encephalitis lethargica, faint, fall senseless, gray out, grayout, high, kayo, keel over, knockout, lethargy, lipothymia, lipothymy, narcohypnosis, narcolepsy, narcoma, narcosis, narcotic stupor, narcotization, nirvana, nirvana principle, nod, nothingness, oblivion, obliviousness, pass out, sedation, semiconsciousness, senselessness, shock, sleep, sleeping sickness, sopor, stupor, succumb, syncope, thanatosis, trance, unconsciousness