The word for step-mom in Spanish is madrastra.
Step Sister in Spanish is Hermanastra
step daughter
Dovedeno momiche
soy hija de
The word step-brother in the Spanish language is hermanastro. The Italian word for this is step-fratello and in French it is demi-frere.
You say "hijo de crianza."
abuelastra i think . . .
hija my daughter = mi hija
Mi segunda hija
Y mi abuelastra
eres una hija maravillosa
Eres una hija encantadora.