Where does “sant” come from?

sant (Welsh) comes from Middle Welsh sant, from Proto-Brythonic *sant, from Vulgar Latin santus, from Latin sānctus, from Latin Iacobus, from Ancient Greek Ἰάκωβος, from Ancient Greek Ἰακώβ, from Hebrew יַעֲקֹב — heel of the foot; heel.

sant (Welsh): male saint