Where does “saloperie” come from?

saloperie (French) comes from French salope, from French salé, from French saler, from Vulgar Latin salare, from Latin salīre, from Latin sāl, from Proto-Italic sāls, from Proto-Indo-European *sḗh₂l — salt.

saloperie (French): filth, refuse, scum; trash; a dirty trick

Definitions

filth, refuse, scum; trash; a dirty trick

Ancestry of “saloperie”, step by step

Step	Language	Word	Meaning
1	French	salope	dirty, slutty; mean; slut
2	French	salé	salted; salty; saline; costly; spicy, colourful
3	French	saler	to salt
4	Vulgar Latin	salare	—
5	Latin	salīre	(jump, spring)
6	Latin	sāl	salt
7	Proto-Italic	sāls	salt
8	Proto-Indo-European	*sḗh₂l	salt

Every word from Proto-Indo-European *sḗh₂l →Every word from Proto-Italic sāls →Every word from Latin sāl →