Wide island or from St. Denis
Cidnee is a modern phonetic spelling of the name Sidney. It likely derives from the Old English words 'sid' meaning wide and 'eg' meaning island, or it may be a contraction of the French place name Saint-Denis.
Less common today
Cidnee isn't in the latest US Top 1000. It last peaked at #9,657 in 2000.
US births per 5-year period, 1990–present (SSA data).
