Where does “jus” come from?

jus (Old French) comes from Latin iūs, from Latin dīcō, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis-, from Latin calceus — small stone, pebble; gravel, rubble.

jus (Old French): juice; down

Definitions

juice; down

Ancestry of “jus”, step by step

jus traces back through two separate lines of ancestry.

via Latin iūs

Step	Language	Word	Meaning
1	Latin	iūs	law, right
2	Latin	dīcō	to say, talk, speak, utter, mention
3	Latin	-tiō	tion, -ation, -ing
4	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
5	Latin	dissertus	arranged, disposed; explained
6	Latin	disserere	second-person singular future passive indicative...
7	Latin	dis-	asunder, apart, in two; reversal, removal;...
8	Latin	calceus	shoe
9	Latin	calx	limestone; chalk; the finish line
10	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

via Late Latin iusum

Step	Language	Word	Meaning
1	Late Latin	iusum	Synonym of deorsum
2	Latin	deosum	—

Words derived from “jus”

Every word from Ancient Greek χάλιξ →Every word from Latin -tiō →Every word from Latin dis- →