Where does “supra” come from?

Supra comes from Latin supra, from Persian سفره, from Arabic سُفْرَة meaning a cloth spread for meals.

supra (English): Used to indicate that the current citation is...

Definitions

supra traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Georgian	სუფრა	tablecloth; the table on which supra is conducted
2	Persian	سفره	tablecloth
3	Arabic	سُفْرَة	victuals; table, especially for eating

Step	Language	Word	Meaning
1	Latin	suprā	above, on the top, on the upper side
2	Old Latin	suprād	—