Where does “katekista” come from?

katekista (Tagalog) comes from Spanish catequista, from Latin catēchista, from Ancient Greek κατηχιστής, from Ancient Greek κατηχέω, from Ancient Greek κᾰτᾰ-, from Ancient Greek κατά, from Ancient Greek καταστερίζω, from Ancient Greek ἀστήρ — to be/become dry; to burn, to glow; hearth.

katekista (Tagalog): catechist

Definitions

catechist

Ancestry of “katekista”, step by step

Step	Language	Word	Meaning
1	Spanish	catequista	catechist
2	Latin	catēchista	catechist
3	Ancient Greek	κατηχιστής	oral instructor
4	Ancient Greek	κατηχέω	to resound; to teach by word of mouth
5	Ancient Greek	κᾰτᾰ-	fully; down; denoting motion downwards
6	Ancient Greek	κατά
7	Ancient Greek	καταστερίζω	to place among the stars; I put among the stars
8	Ancient Greek	ἀστήρ	a celestial body; illustrious person; starfish
9	Proto-Hellenic	astḗr	star
10	Proto-Indo-European	h₂stḗr	star
11	Proto-Indo-European	h₂eHs-	to be/become dry; to burn, to glow; hearth

Every word from Proto-Indo-European h₂eHs- →Every word from Proto-Indo-European h₂stḗr →Every word from Proto-Hellenic astḗr →