Skip to main content

Updated June 9, 2019

Family name origins & meanings

  • English : perhaps a habitational name (reduced form) from Costessey in Norfolk, named with an Old English or Old Norse personal name Cost + Old English ēg ‘island’, ‘dry ground in a marsh’.
  • Americanized spelling of French Cossé (see Cosse).

Join the Family

Your partner in parenting from baby name inspiration to college planning.

Subscribe