Where does “альфа-частица” come from?

альфа-частица (Russian) comes from German Alphateilchen, from German Teilchen, from German Teil, from Middle High German teil, from Old High German teil, from Proto-West Germanic daili, from Proto-Germanic dailiz, from Proto-Indo-European dʰayl- — part, watershed.

альфа-частица (Russian): alpha particle

Definitions

  1. alpha particle

Ancestry of “альфа-частица”, step by step

альфа-частица traces back through 3 separate lines of ancestry.

via German Alphateilchen

StepLanguageWordMeaning
1GermanAlphateilchenalpha particle
2GermanTeilchenparticle; bun
3GermanTeilpart, piece; fraction of a whole; thing
4Middle High Germanteil
5Old High Germanteil
6Proto-West Germanicdailipart
7Proto-Germanicdailizpart, portion, deal
8Proto-Indo-Europeandʰayl-part, watershed

via Russian части́ца

StepLanguageWordMeaning
1Russianчасти́цаfraction, particle
2Russianчастьpart; share; piece
3Old Church Slavonicчѧстьpart; piece
4Proto-Slavicčęstьpart

via Russian а́льфа

StepLanguageWordMeaning
1Russianа́льфаalpha
Every word from Proto-Indo-European dʰayl-Every word from Proto-Germanic dailizEvery word from Proto-West Germanic daili