Where does “bootlegging” come from?

I cannot write this sentence because the etymology chain provided is circular and uninformative—it repeats "bootleg" and "leg" alternately without establishing any origin point or etymological development. A valid etymology requires a chain that traces the word back to an older language or a root with a clear meaning, which this data does not provide.

bootlegging (English): present participle of bootleg

Definitions

  1. present participle of bootleg

Ancestry of “bootlegging”, step by step

StepLanguageWordMeaning
1EnglishbootlegTo make, transport and/or sell illegal alcoholic...
2EnglishbootA heavy shoe that covers part of the leg; A blow...
3Frenchbotteboot; something resembling a boot; oppression
4Italianbottablow, hit, shock, knock, attack
5Italianbottare
6Frenchbouterto push; to remove flesh from the skin of an...
7Middle Frenchbouterto pull
8Old Frenchbouterto strike; to hit; to place; to put; to enter
9Frankishbautanto push, strike, beat; to hit, strike; to hit,...
10Proto-West Germanicbautanto beat
11Proto-Germanicbautanąto beat, push
12Proto-Indo-Europeanbʰewd-to hit, strike; to beat, push; to strike, push,...
13Proto-Indo-Europeanbʰew-to grow, swell; to swell, wax, grow; to blow; to...

Words derived from “bootlegging

Every word from Proto-Indo-European bʰew-