Swoon
Middle English: the verb from obsolete swown ‘fainting’, the noun from aswoon ‘in a faint’, both from Old English geswōgen ‘overcome’.
wiktionary
From Middle English swoune, swone, from the verb (see below).
From Middle English swounen, swonen(“to faint”), and aswoune(“in a swoon”), both ultimately from Old English ġeswōgen(“insensible, senseless, dead”), past participle of swōgan(“to make a sound, overrun, suffocate”) (compare Old English āswōgan(“to cover over, overcome”)), from Proto-Germanic *swōganą(“to make a noise”), from Proto-Indo-European *(s)weh₂gʰ-. Cognate with Low German swogen(“to sigh, groan”), Dutch zwoegen(“to groan, breathe heavily”), dialectal Norwegian søgja(“to whistle, hum, talk loudly”). More at sough.
etymonline
swoon (n.)
c. 1300, suowne, suun, "state of unconsciousness," probably from Old English geswogen "in a faint," past participle of a lost verb *swogan (see swoon (v.)).
swoon (v.)
c. 1200, "to become unconscious," probably from a lost Old English verb *swogan (as in Old English aswogan "to choke"), of uncertain origin. Compare Low German swogen "to sigh." Related: Swooned; swooning.
