rebaptize

The story

1. Proto-Italic*wre-
2. Latinre-
3. Old Frenchre-
4. Middle Englishre-
5. Englishre-
6. Proto-Indo-European*gʷeh₂bʰ-
7. Proto-Indo-European*gʷh₂bʰyéti
8. Proto-Hellenic*gʷápt͏̌ō
9. Ancient Greekβάπτω (báptō)
10. Ancient Greekβαπτίζω (baptízō)
11. Late Latinbaptizō
12. Old Frenchbaptiser
13. Middle Englishbaptisen
14. Englishbaptize
15. English todayrebaptize

From re- + baptize.