English
flightmare
Blend of flight + nightmare.
Proto-Indo-European *plewk- ‘to fly’
Proto-Germanic *fleuganą ‘to fly’
Proto-West Germanic *fluhti ‘flight’
Old English flyht ‘flight’
Middle English flight
English flight
Proto-Indo-European *mer- ‘to die’
…
Proto-West Germanic *marā ‘evil spirit, nightmare’
Proto-West Germanic *nahtmarā
Old English *nihtmare ‘mare’
Middle English nyghtmare ‘an evil spirit attacking men or horses at night’
English nightmare
Today it means
noun An unpleasant flight or experience during air travel.
Language periods are conventional ranges, not dates for this word.
Etymograph / flightmare