syncope
noun
°A loss of consciousness when someone faints, a swoon.
"1973: the rapidly-whitening face, the miserable fixed smile, meant a syncope within the next few bars. — Patrick O'Brian, HMS Surprise"
°A missing sound from the interior of a word, for example by changing cannot to can't or the pronunciation of placenames in -cester (e.g. Leicester) as -ster.
synonyms: swoon, faint, fainting