Gaynor Family History
Gaynor Name Meaning
Irish: shortened Anglicized form of Gaelic Mag Fhionnbhairr ‘son of Fionnbharr’ a personal name composed of fionn ‘fair white’ + barr ‘top head’. The Mag Fhionnbhairr took their name from Fionnbharr Ó Géaradháin who came to prominence during the 12th century in County Longford. English (northern): altered form of Gainer under the influence of the Irish name. Welsh: from the female personal name Gaenor a shortened form of Welsh Gwenhwyfar a compound of gwen ‘fair white’ + (g)wyf ‘smooth yielding’ + fawr ‘large’. This was the name of King Arthur's queen Guinevere.
Source: Dictionary of American Family Names 2nd edition, 2022