Etymology

Heffernan

H4E1F4F4E1R1N1A1N1

Today it means: A surname from Irish. Full definition →

Irish Ó hIfearnáin
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The story

  1. Irish · derived fromÓ hIfearnáin“descendant of Ifearnán”
  2. English todayHeffernan

Anglicized form of Irish Ó hIfearnáin (“descendant of Ifearnán”), a personal name derived from a diminutive form of ifreannach (“demon”), from ifreann (“hell”).

Etymology from Wiktionary, CC BY-SA 4.0.