Where does “тамизда́т” come from?

тамизда́т (Russian) comes from Russian там, from Old East Slavic тамо, from Proto-Slavic tamo — there; thereto.

Ancestry of “тамизда́т”, step by step

StepLanguageWordMeaning
1Russianтамthere
2Old East Slavicтамоthere
3Proto-Slavictamothere; thereto
Every word from Proto-Slavic tamo →Every word from Old East Slavic тамо →Every word from Russian там →