Ok, I doubt this is correct, but here's my attempt:
A (https://www.etymonline.com/word/a-#:~:text=a%2D%20(3),asexual%2C%20amoral%2C%20agnostic).) (without) + LOUVRE sounds like ALLUV, + I and A from "it's a" to make ALLUVIA, which is sand and gravel "let down" from flowing water or ice.