From Quincy; estate of the fifth son
A patronymic or locational surname-turned-given name, likely originating from the French place name Cuinchy. It combines the prefix 'De' meaning 'of' or 'from' with the name Quincy, which is derived from the Latin name Quintus.
Fewer than 5 boys were named Dequincy in 2025.
US births per 5-year period, 1990–present (SSA data).
English essayist and intellectual best known for his 1821 memoir
