Where does “citrangulum” come from?

citrangulum (Latin) comes from Arabic نَارَنْج, from Persian نارنگ, from Sanskrit नारङ्ग, from Dravidian dra, from Proto-Dravidian *cīntu — date palm.

citrangulum (Latin): bitter orange, fruit of Citrus × aurantium

Definitions

bitter orange, fruit of Citrus × aurantium

Ancestry of “citrangulum”, step by step

citrangulum traces back through two separate lines of ancestry.

via Arabic نَارَنْج

Step	Language	Word	Meaning
1	Arabic	نَارَنْج	bitter orange
2	Persian	نارنگ	bitter orange
3	Sanskrit	नारङ्ग	the orange-tree; the juice of the pepper plant;...
4	Dravidian	dra	—
5	Proto-Dravidian	*cīntu	date palm

via Latin cī̆trus

Step	Language	Word	Meaning
1	Latin	cī̆trus	citron tree
2	Greek	κέδρος	cedar
3	Ancient Greek	κέδρος	cedar; anything made of cedar-wood; cedar-oil

Every word from Proto-Dravidian *cīntu →Every word from Dravidian dra →Every word from Sanskrit नारङ्ग →