I think Google translate is just wrong here
https://dle.rae.es/mordita?m=form
https://es.wiktionary.org/wiki/mordida
https://es.wiktionary.org/wiki/mordita
Because I learned this from informal situations in the US something like 30 years ago, it stuck. But, surprise, surprise, the pronunciation was just an approximation, and led me astray.
Mordida it shall be forevermore.
Muchas Gracias.