tsuwm, your use of the word redux got me to thinking about it. It's not a word that I use commonly. Here's what Atomica has to say about it:
re·dux (rç-dŭks')
adj.
Brought back; returned. Used postpositively.

[Latin : re-, re- + dux, leader; see duke.]

I followed their suggestion to look up duke, and oh my gosh, look at what it says about sense 4, down at the bottom!
duke (dûk, dyûk)
n.
1. A nobleman with the highest hereditary rank, especially a man of the highest grade of the peerage in Great Britain.
2. A sovereign prince who rules an independent duchy in some European countries.
3. (Abbr. D. or Du.) Used as the title for such a nobleman.
4. Slang. A fist. Often used in the plural: Put up your dukes!
5. Botany. A type of cherry intermediate between a sweet and a sour cherry.
intr.v., duked, duk·ing, dukes.
To fight, especially with fists: duking it out.

[Middle English, from Old French duc, from Latin dux, duc-, leader, from dûcere, to lead. N., sense 4, short for Duke of Yorks, rhyming slang for forks, fingers.]