The story
- Sanskrit · derived fromवरुणद्वीप“island of Varuna”
- Portuguese · borrowed fromBorneo
- English todayBorneo
From Portuguese Borneo, probably ultimately from Sanskrit वरुणद्वीप (varuṇa-dvīpa, “island of Varuna”), therefore a doublet of Brunei.
Etymology from Wiktionary, CC BY-SA 4.0.