Etymograph

English

bhai

Bhai comes from Sanskrit भ्रातृ ‘a brother’, and goes back to Proto-Indo-European *bʰréh₂tēr.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*bʰréh₂tēr1‘brother’reconstructed
  2. Proto-Indo-Iranianc. 2500–1800 BCE*bʰráHtā1‘brother’reconstructed
  3. Sanskritc. 1500–500 BCEभ्रातृ2bhrātṛ‘a brother’
  4. Englishtodaybhai2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Sanskrit भ्रातृ
  2. 2 Wiktionary, English bhai

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*bʰréh₂tērWiktionary, Sanskrit भ्रातृ‘brother’reconstructed
  2. Proto-Indo-Iranianc. 2500–1800 BCE*bʰráHtāWiktionary, Sanskrit भ्रातृ‘brother’reconstructed
  3. Sanskritc. 1500–500 BCEभ्रातृWiktionary, English bhaibhrātṛ‘a brother’
  4. EnglishtodaybhaiWiktionary, English bhai

The story

Transliteration of Hindustani بھائی (bhāī) / भाई (bhāī) and other South Asian languages, ultimately from Sanskrit भ्रातृ (bhrātṛ).

Full etymology on Wiktionary

Linked words

through Proto-Indo-European *bʰréh₂tēr ‘brother’

brother, bro, fraternity, brethren, fra, fraternal, friar, frater, 11 more

through Sanskrit भ्रातृ ‘a brother’

pal, 1 more

Today it means

noun friend, dude, man

Sources

Sources: Wiktionary, “bhai”; the older steps come from the Wiktionary entry for Sanskrit भ्रातृ. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *bʰréh₂tēr / bhai