English
speedwork
From speed + work.
Proto-Indo-European *speh₁- ‘to prosper’
…
Proto-West Germanic *spōan ‘to succeed’
Proto-West Germanic *spōdi ‘prosperity’
Old English spēd ‘success’
Middle English sped ‘prosperity’
English speed
Proto-Indo-European *werǵ- ‘to make’
…
Proto-Germanic *werką
Proto-West Germanic *werk
Old English weorc ‘labor’
Middle English work
English work
Today it means
noun physical exercise that concentrates on speed
Language periods are conventional ranges, not dates for this word.
Etymograph / speedwork