We don't have synonyms for east germany yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are east german, east germans and west germany.
(n) :
(historical, 1949–1990) A former Communist country of Central Europe, existing between 1949 and 1990. Official name: German Democratic Republic. Capital: East Berlin.
(n) :
(since 1990) A geographic region of Germany, consisting of the states formerly part of the Cold War-era East Germany, also known as Eastern Germany.
(n) :
(historical, 1949–1990) A former Communist country of Central Europe, existing between 1949 and 1990. Official name: German Democratic Republic. Capital: East Berlin.
(n) :
(since 1990) A geographic region of Germany, consisting of the states formerly part of the Cold War-era East Germany, also known as Eastern Germany.