English
Russosphere
From Russo- + -sphere.
Proto-Indo-European *sperH- ‘to kick, rebound, move convulsively’
…
Latin sphaera ‘ball, globe, celestial sphere’
Late Latin sphēra
Old French sphere ‘sphere (shape)’
Middle English spere ‘the cosmos, outer space’
English sphere
Today it means
noun Russia and other countries in its sphere of influence, including former territories under the Russian Empire and the Soviet Union.
Language periods are conventional ranges, not dates for this word.
Etymograph / Russosphere