Where does “spiroatom” come from?

spiroatom (English) comes from English atom, from Middle English attome, from Middle French athome, from Latin atomus, from Ancient Greek ἄτομος, from Ancient Greek ἀ-, from Proto-Hellenic hə-, from Proto-Indo-European sm̥- — together, one.

spiroatom (English): The connecting atom in a spiro compound

Definitions

  1. The connecting atom in a spiro compound

Ancestry of “spiroatom”, step by step

spiroatom traces back through two separate lines of ancestry.

via English atom

StepLanguageWordMeaning
1EnglishatomThe smallest possible amount of matter which...
2Middle Englishattomeatom
3Middle Frenchathomeatom
4Latinatomusindivisible; an atom, particle incapable of being...
5Ancient Greekἄτομοςuncut; indivisible, not capable of being...
6Ancient Greekἀ-The alpha privativum, used to make words that...
7Proto-Hellenichə-same; together
8Proto-Indo-Europeansm̥-one; with, together
9Proto-Indo-Europeansem-together, one

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 sem-