hermanastro

Spanish

Etymology

Etymology tree

Proto-Indo-European *ǵenh₁-

Proto-Indo-European *-mn̥

Proto-Indo-European *ǵénh₁mn̥

Proto-Italic *genamen

Latin *genmen

Latin germen

Latin germānus

Old Spanish ermano

Spanish hermano

Latin -aster

Spanish -astro

Spanish hermanastro

From hermano + -astro.

Pronunciation

• IPA^(key): /eɾmaˈnastɾo/ [eɾ.maˈnas.t̪ɾo]
• Rhymes: -astɾo
• Syllabification: her‧ma‧nas‧tro

Noun

hermanastro m (plural hermanastros, feminine hermanastra, feminine plural hermanastras)

1. stepbrother (stepsister for the feminine form), stepsibling (gender neutral term)
2. half brother (half sister for the feminine form)

   Synonym: medio hermano

Related terms

• hermano

Further reading

• “hermanastro”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025