perestroika (n.)

1981, from Russian perestroika, literally "rebuilding, reconstruction, reform" (of Soviet society, etc.), from pere- "re-" (from Old Russian pere- "around, again," from Proto-Slavic *per-, from PIE root *per- (1) "forward," hence "through, around, against") + stroika "building, construction," from Old Russian stroji "order," from PIE *stroi-, from root *stere- "to spread." First proposed at the 26th Party Congress (1981); popularized in English 1985 during Mikhail Gorbachev's leadership of the U.S.S.R.