Last name DARCY: origin and meaning

Darcy : 1: English (Lancashire) and Irish: of Norman origin a habitational name from Arcy in Manche France with fused preposition d(e) ‘from’.2: Irish: in Ireland this is generally the Norman name (see 1 above) established in Meath by Sir William D'Arcy in the 1360s but it was also adopted for Ó Dorchaidhe ‘descendant of the dark one’ from dorcha ‘dark gloomy’ a Connacht name that fell together with the Norman surname which was introduced by Sir William D'Arcy and Sir John D'Arcy Chief Justiciar of Ireland in the 14th century.

Source : DAFN2 : Dictionary of American Family Names 2nd edition, ©2022 by Patrick Hanks and Oxford University Press

ncG1vNJzZmidnmO0prrEmqWerF6kv6h70q6pp5mdmsBwkMCrmrI%3D