Where does “Душанбе” come from?

Душанбе (Russian) comes from Tajik Душанбе, from Persian دوشنبه, from Arabic غاز, from French gaz, from Dutch gas, from Middle Dutch gasse, from Middle High German gazze, from Old High German gazza.

Ancestry of “Душанбе”, step by step

StepLanguageWordMeaning
1TajikДушанбеMonday
2PersianدوشنبهMonday
3Arabicغازgas; gas; gasoline; petrol; kerosene
4Frenchgazgas; flatulence
5Dutchgasgas; liquefied petroleum gas; unpaved street
6Middle Dutchgasseunpaved street
7Middle High Germangazze—
8Old High Germangazzalane
9Proto-West Germanic*gatwā—
10Proto-Germanicgatwǭstreet, passage
11Proto-Indo-Europeangʰodweh₂—
Every word from Proto-Indo-European gʰodweh₂ →Every word from Proto-Germanic gatwǭ →Every word from Proto-West Germanic *gatwā →