Where does “Apostol” come from?

Apostol (Tagalog) comes from Spanish Apóstol, from Latin apostolus, from Ancient Greek ἀπόστολος, from Ancient Greek ἀποστέλλω, from Ancient Greek ἀπο-, from Ancient Greek ἀπό, from Ancient Greek Ἥλιος, from Ancient Greek τύπος — to push, to hit.

Ancestry of “Apostol”, step by step

Step	Language	Word	Meaning
1	Spanish	Apóstol	—
2	Latin	apostolus	a notice sent to a higher tribunal or judge;...
3	Ancient Greek	ἀπόστολος	one who is sent; messenger, envoy, ambassador;...
4	Ancient Greek	ἀποστέλλω	to send off, send away from; to send off,...
5	Ancient Greek	ἀπο-	Indicating movement: away, from, off; Indicating...
6	Ancient Greek	ἀπό	from, away from; because of, as a result of
7	Ancient Greek	Ἥλιος	sun
8	Ancient Greek	τύπος	A blow, pressing; The results of a blow: mark,...
9	Ancient Greek	τύπτω	to beat, strike, smite; to beat, strike oneself
10	Proto-Indo-European	(s)tewp-	to push, to stick
11	Proto-Indo-European	(s)tew-	to push, to hit

Every word from Proto-Indo-European (s)tew- →