Ennis Family History
Ennis Name Meaning
Irish: shortened Anglicized form of Gaelic Mag Aonghuis ‘son of Angus’ see McGinnis and compare Angus and Hennessy . English: perhaps a variant of Ince or Henney with loss of initial H- and the addition of a post-medieval excrescent -s or a variant of Enos . Cornish: from any of various places in the western half of Cornwall called Ennis Enys Ninnes etc. from Cornish (an) enys ‘(the) island’. The Saint Gluvias family is certainly from Enys in Saint Gluvias parish.
Source: Dictionary of American Family Names 2nd edition, 2022