Where does “speedfreak” come from?

speedfreak (English) comes from English Speed, from Middle English sped, from Old English spēd, from Proto-West Germanic spōdi, from Proto-West Germanic spōan, from Proto-Germanic spōaną, from Proto-Indo-European spéh₁-, from Proto-Indo-European speh₁- — to succeed, to prosper.

speedfreak (English): An addict or habitual user of amphetamines,...

Definitions

  1. An addict or habitual user of amphetamines,...

Ancestry of “speedfreak”, step by step

speedfreak traces back through two separate lines of ancestry.

via English Speed

StepLanguageWordMeaning
1EnglishSpeedThe state of moving quickly or the capacity for rapid motion
2Middle Englishspedgood fortune
3Old Englishspēdsuccess; luck, prosperity, success
4Proto-West Germanicspōdihurry, rush; success, prosperity
5Proto-West Germanicspōanto succeed, prosper
6Proto-Germanicspōanąto prosper, succeed, be happy
7Proto-Indo-Europeanspéh₁-to succeed, to prosper
8Proto-Indo-Europeanspeh₁-to succeed, to prosper

via English freak

StepLanguageWordMeaning
1EnglishfreakA sudden change of mind; Someone or something...
2Middle Englishfrekea bold man, warrior, man, creature
3Old Englishfrecaa bold man, warrior, hero
4Proto-Germanicfrekôan active or eager man; a bold warrior; wolf
5Proto-Germanicfrekazgreedy
6Proto-Indo-Europeanpereg-
Every word from Proto-Indo-European speh₁-