baptista (Latin) comes from Ancient Greek βαπτιστής, from Ancient Greek βαπτίζω, from Ancient Greek βάπτω, from Proto-Hellenic gʷápťō, from Proto-Indo-European gʷh₂bʰ-yé-ti, from Proto-Indo-European gʷeh₂bʰ- — to dive, dive in.
baptista (Latin): baptizer, baptist