The word renaciste is the preterite form of renacer in the second person singular. There are other translations for this conjugation.
See the full renacer conjugation
Ése día, a la orilla del río, fue el momento que "renaciste".
That day, by the edge of the river, that was the moment you were reborn.
Renaciste en un buen momento. Espera... o quizás nunca conociste el placer de ser una mujer.
You were reborn at a really nice time or perhaps you didn't have the chance to know the pleasure of a woman yet?
Want to Learn Spanish?
Spanish learning for everyone. For free.
The world’s largest Spanish dictionary
Conjugations for every Spanish verb
Learn vocabulary faster
Learn every rule and exception
Native-speaker video pronunciations
Word of the Day
Have you tried it yet? Here's what's included:
Learn offline on iOS
Learn Spanish faster