=== インド・ヨーロッパ祖語 ===
<!-- Unless there are reliable secondary sources which make this connection, this should not be here. -->ヴェーダのルドラは、アポローンと似たような働きをする。恐ろしい神は「射手」と呼ばれ、弓もまたシヴァ神の属性である<ref>For Śarva as a name of Shiva see: Apte, p. 910.</ref>。
<!-- Unless there are reliable secondary sources which make this connection, this should not be here. -->The [[Vedic]] [[Rudra]] has some similar functions with Apollo. The terrible god is called "the archer" and the bow is also an attribute of [[Shiva]].<ref>For {{IAST|Śarva}} as a name of Shiva see: Apte, p. 910.</ref> Rudra could bring diseases with his arrows, but he was able to free people of them and his alternative Shiva is a healer physician god.<ref>For association between Rudra and disease, with Rigvedic references, see: Bhandarkar, p. 146.</ref> However the [[Indo-European language|Indo-European]] component of Apollo does not explain his strong relation with omens, exorcisms, and with the oracular cult.
==Oracular cult==