bisabuelo

From bis- +‎ abuelo.

bisabuelo m (plural bisabuelos, feminine bisabuela, feminine plural bisabuelas)

1. great-grandfather (great-grandmother for the feminine form)
2. (usually in the plural) great-grandparent (either a great-grandmother or a great-grandfather)

The noun bisabuelo is like several other Spanish nouns with a human referent. The masculine forms are used when the referent is known to be male, a group of males, a group of mixed or unknown gender, or an individual of unknown or unspecified gender. The feminine forms are used if the referent is known to be female or a group of females.

• abuelo
• bisnieto