sesquiple first cousin

Noun

 * 1) A child of maternal half aunt and of paternal uncle at the same time.
 * 2) A child of paternal half aunt and of maternal uncle at the same time.
 * 3) A child of maternal aunt and of paternal half-uncle at the same time.
 * 4) A child of paternal aunt and of maternal half-uncle at the same time.
 * 5) A relative who has with the other person only zero parents and three grandparents in common.