Lorcan means "little fierce one", derived from Irish Gaelic lorcc "fierce" combined with a diminutive suffix. This was the name of a 12th-century archbishop of Dublin.
Saintly namesake: Lorcán Ua Tuathail, also known as St. Laurence O'Toole, was a 12th-century Irish archbishop known for his leadership and peacemaking during turbulent times in Ireland. (November 14 · 12th century)
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