https://www.cnrtl.fr/definition/niquer
Here's a definitive source... The word originated from French military slang in 1918 from Algeria. Something about getting shot in the back. The abbreviations in the etymology section of the page are hard to make out
https://www.cnrtl.fr/definition/niquer
Here's a definitive source... The word originated from French military slang in 1918 from Algeria. Something about getting shot in the back. The abbreviations in the etymology section of the page are hard to make out