Where does “﷼” come from?

﷼ (Persian) comes from Arabic رِيَال, from Spanish real, from Late Latin realis, from Latin rēs, from Latin vindicatio, from Latin vindicō, from Latin vindex, from Latin dīcō — small stone, pebble; gravel, rubble.

Ancestry of “﷼”, step by step

Step	Language	Word	Meaning
1	Arabic	رِيَال	riyal
2	Spanish	real	real; royal; a quarter of a peseta
3	Late Latin	realis	actual; real, actual
4	Latin	rēs	thing, object, stuff
5	Latin	vindicatio	civil lawsuit; protection, defence; vindication;...
6	Latin	vindicō	to lay claim to as one's own (often with sibi)
7	Latin	vindex	claimant, vindicator
8	Latin	dīcō	to say, talk, speak, utter, mention
9	Latin	-tiō	tion, -ation, -ing
10	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
11	Latin	dissertus	arranged, disposed; explained
12	Latin	disserere	second-person singular future passive indicative...
13	Latin	dis-	asunder, apart, in two; reversal, removal;...
14	Latin	calceus	shoe
15	Latin	calx	limestone; chalk; the finish line
16	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

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