antepasar

An archaic and extremely rare verb built from ante- (before) + pasar (to pass), used historically to mean passing by or ahead of something beforehand. It has essentially no living use in modern Spanish outside old texts, and most native speakers today would know only the related noun antepasado (ancestor), not this verb.

• En crónicas antiguas se lee que la caballería antepasó al resto de las tropas. — In old chronicles it's recorded that the cavalry passed ahead of the rest of the troops.
• El texto medieval usa antepasar en un sentido que hoy resulta oscuro. — The medieval text uses antepasar in a sense that reads as obscure today.
• Ningún hablante actual usaría antepasar en una conversación normal. — No speaker today would use antepasar in an ordinary conversation.

Assuming antepasar is simply 'the verb form' of antepasado (ancestor) — the two are historically related, but antepasar itself is essentially obsolete and won't be understood as 'to have ancestors' by a modern speaker.