English
headlessly
From headless + -ly.
Formed from headless + -ly
Proto-Germanic *haubidą
Proto-West Germanic *haubid ‘head’
Proto-West Germanic *haubidalaus
Old English hēafodlēas
Middle English heedles
English headless
Today it means
adv In a headless way.
Language periods are conventional ranges, not dates for this word.
Etymograph / headlessly