Where does “spirocyclopropyl” come from?

spirocyclopropyl (English) comes from English cyclopropyl, from English cyclopropane, from English propane, from English propionic acid, from French acide propionique, from Ancient Greek πρῶτος, from Ancient Greek πρό, from Proto-Indo-European pró — passed , crossed.

Ancestry of “spirocyclopropyl”, step by step

spirocyclopropyl traces back through two separate lines of ancestry.

via English cyclopropyl

StepLanguageWordMeaning
1EnglishcyclopropylThe univalent radical derived from cyclopropane...
2EnglishcyclopropaneThe simplest alicyclic hydrocarbon, CH, an...
3EnglishpropaneAn aliphatic hydrocarbon, CH, a constituent of...
4Englishpropionic acidThe compound with the formula CHCHCOOH, a...
5Frenchacide propionique
6Ancient Greekπρῶτοςfirst; earliest; foremost, most prominent
7Ancient Greekπρόbefore; before, in front, forth, forward; before,...
8Proto-Indo-Europeanprótoward, leading to
9Proto-Indo-Europeanper-before, in front; first; to go through
10Proto-Indo-Europeanpr̥tóspassed , crossed

via English spiro

StepLanguageWordMeaning
1EnglishspiroOnly used in spiro compound; Spironolactone
2LatinspiraA thing that is coiled, twisted, or wound; A...
3Frenchtrompetrumpet; trunk of an elephant; squinch
4Middle Frenchtrompe
5Old Frenchtrompetrump, trumpet; horn, trump, trumpet
6Frankishtrumpatrump, trumpet; trumpet
Every word from Proto-Indo-European pr̥tós