An Etymological Dictionary of Astronomy and Astrophysics

1. The physical phenomena arising from the behavior of → electrons and → protons that is caused by the → attraction of particles with opposite → charges and the → repulsion of particles with the same charge.
   

2. The → science of electric charges and → currents.
   

3. A → flow of electrons that is used to generate → light and → power electric devices.

Etymology (EN): From L. electrum “amber,” from Gk. elektron “amber” + -ity a suffix used to form abstract nouns expressing state or condition.

Etymology (PE): Barq, Pers. term, used also in Ar. and Hebrew (barak “lightening”); variants in Pers.: varq, barx, balk, belak, bala; Lârestâni belak; Tabari, Lahijâni, Semnâni, Sorxeyi, Sangesari belk; Gilaki val; Lori beleyz; Kurd. bilese; Tokharian AB pâlk; Mid/Mod.Pers. bir “lightening,”
Mid.Pers. brâh “brilliance, splendour,” br’z- “to shine, beam,” Mod.Pers. barâz “beauty, grace, elegance;”
Av. brāz- “to shine, beam; splendour,” brazāiti “shines;” cf. Skt. bhrāj- “to shine, beam, sparkle,” bhrajate “shines;” Gk. phlegein “to burn;” L. fulgere “to shine,” fulmen “lightning,” flagrare “to blaze, burn;” O.H.G. beraht “bright;” O.E. beorht “bright;” E. → bright; PIE base *bherəg-; *bhrēg- “to shine; white.”