Prefix indicating great-: bisgreat-
granddaughter la bisnieta
great-grandfather el bisabuelo
great-grandmother la bisabuela
great-grandson el bisnieto
Suffix indicating step-: -astro/-astra
stepbrother el hermanastro
stepdaughter la hijastra
stepfather el padrastro
stepgranddaughter la nietastra
stepgrandson el nietastro
stepmother la madrastra
stepsister la hermanastra
stepson el hijastro