Likely a variant of Courtney, meaning short nose
Cordney is a rare variant of the French surname Courtney. It is derived from the Old French 'court nez', which literally translates to 'short nose', originally used as a nickname for a person with that physical characteristic. In modern usage, it is an extremely rare masculine given name that follows the trend of surname-based first names.
Less common today
Cordney isn't in the latest US Top 1000. It last peaked at #4,577 in 1990.
US births per 5-year period, 1990βpresent (SSA data).