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.
Less common today
Dequincy isn't in the latest US Top 1000. It last peaked at #3,398 in 1992.
English essayist and intellectual best known for his 1821 memoir
US births per 5-year period, 1990–present (SSA data).
