Family name origins & meanings
- French (Cossé) : habitational name from Cossé-d’Anjou in Maine-et-Loire, Cossé-en-Champagne, or Cossé-le-Vivien in Mayenne, all of which are named with the Romano-Gallic personal name Cocceius + the locative suffix -acum.
- French : from cosse ‘pod’, probably a nickname or perhaps a metonymic occupational name for a grower or seller of peas and similar vegetables.
- Greek : unexplained. Possibly the French surname, or an Americanized reduced form of Costas or some other surname beginning with Cost-.