English
light-headed
From light (“lacking weight or mental gravity”, adjective) + headed (“having a head”, adjective).
Formed from light ‘lacking weight or mental gravity’ + headed ‘having a head’
Proto-Indo-European *lewk- ‘to shine’
…
Proto-Germanic *leuhtą
Proto-West Germanic *leuht ‘light’
Old English lēoht
Middle English light ‘light, illumination’
English light
Today it means
adj Dizzy or feeling faint, usually as a result of a drop in blood pressure to the brain; delirious.
Language periods are conventional ranges, not dates for this word.
Etymograph / light-headed