Brendan (English)

Where does "Brendan" come from?

The English given name Brendan is an anglicized form of the Irish name 'Bréanainn'[1]. This name traveled through Latin as 'Brendanus'[1] and originated from Old Irish 'Brénainn'[1]. Going further back, the Old Irish form derived from Old Welsh 'breenhin'[1], meaning 'prince, king'[1]. Ultimately, these terms trace back to Proto-Celtic '*brigantīnos'[1], meaning '(someone) preeminent, outstanding'[1], which functioned as a diminutive of '*brigantī'[1], meaning 'high, exalted'[1].

Full etymology tree

Brendan (English), 'A male given name from Irish.'
- borrowed Brendanus (Latin), 'a male given name from Old Irish'
  - borrowed Bréanainn (Irish), 'a male given name from Old Irish, equivalent to English Brendan'
    - inherited Brénainn (Old Irish), 'a male given name from Proto-Brythonic'
      - borrowed breenhin (Old Welsh)
        inherited *brigantīnos (Proto-Celtic)
        derived *brigantī (Proto-Celtic), 'something high or elevated'
        inherited *bʰr̥ǵʰéntih₂ (Proto-Indo-European)
        derived *bʰérǵʰonts (Proto-Indo-European), 'high'
        suffix *bʰerǵʰ- (Proto-Indo-European), 'to rise up, ascend'
        suffix *-onts (Proto-Indo-European), 'Forms adjectives from Caland system roots.'
      - borrowed *brɨɣėntin (Proto-Brythonic), 'lord, king'
        inherited *brigantīnos (Proto-Celtic)
        derived *brigantī (Proto-Celtic), 'something high or elevated'
        inherited *bʰr̥ǵʰéntih₂ (Proto-Indo-European)
        derived *bʰérǵʰonts (Proto-Indo-European), 'high'
        suffix *bʰerǵʰ- (Proto-Indo-European), 'to rise up, ascend'
        suffix *-onts (Proto-Indo-European), 'Forms adjectives from Caland system roots.'

Ancestors

Bréanainn (Irish)
Brendanus (Latin)
Brénainn (Old Irish)

Cognates and doublets

Brian (English)

Descendants and derived words

Brenaissance (English)

Related words

Liam (English)

Sources

Updated October 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris