Where does “бронебашня” come from?

бронебашня (Russian) comes from German Panzerturm, from German turm, from Middle High German turn, from Old High German turn, from Old French torn, from Old French tour, from Old French torner, from Latin tornō — to rub, turn; to drill, pierce.

бронебашня (Russian): cupola

Definitions

  1. cupola

Ancestry of “бронебашня”, step by step

бронебашня traces back through 3 separate lines of ancestry.

via German Panzerturm

StepLanguageWordMeaning
1GermanPanzerturmcupola rotatable, armed and armored dome; also on terrain but especially on tanks and warships
2Germanturmtower, spire very tall building or structure, especially with a tapering top
3Middle High Germanturntower
4Old High Germanturntower
5Old Frenchtorn
6Old Frenchtourtower
7Old Frenchtornerto turn; to return; to go back
8Latintornōto turn
9LatintornusA turner's wheel, lathe; A potter's wheel
10Ancient GreekτόρνοςA tool similar to a pair of compasses used to...
11Proto-Indo-Europeantorh₂no-
12Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce

via Russian ба́шня

StepLanguageWordMeaning
1Russianба́шняtower
2Italianbastiabastion
3ItalianbastireTo build, construct
4Vulgar Latin*bastīre
5Frankishbastijanto sew, weave; to weave, plait, sew; to plait,...

via Russian броня́

StepLanguageWordMeaning
1Russianброня́armor, breastplate
2Old East Slavicбръня
3Proto-Slavicbrъňaarmor
4Gothic𐌱𐍂𐌿𐌽𐌾𐍉breastplate
Every word from Proto-Indo-European terh₁-Every word from Proto-Indo-European torh₂no-Every word from Ancient Greek τόρνος