A person who shares common great-grandparents, but grandparents and parents are different.
Second-cousin Sentence Examples
It cannot have been his conscience which constrained him to leave Teresa, for his next step was to marry Berengaria of Castile, who was his second cousin.
He was a second cousin to the elder John Adams. His father, whose Christian name was also Samuel, was a wealthy and prominent citizen of Boston, who took an active part in the politics of the town, and was a member of the Caucus (or Caulker's) Club, with which the political term "caucus" is said to have originated; his mother was Mary Fifield.
He was named after Peisistratus, the youngest son of Nestor, the alleged ancestor of his family; he was second cousin on his mother's side to Solon, and numbered among his ancestors Codrus the last great king of Athens.
Jim 's second cousin 's wife 's brother had not been unworthy of the sacred trust reposed in him.
His second cousin twice removed or something like that?