Why Hindus haven't named their religion?

Answer 1

Because it is Timeless[= Nobody knows how or when it originated], it has no founder[ the RiShis were only the Receivers(more aptly "the Seers" = द्रष्टारः = draShTAraH) of the Wisdom[in the form of the mantras in The Vedas]. There have been many Rishis so who will you name the religion after?

Further, the other term that is frquently used to referred to the utterances of the Rishis is Dharma(= the sum total Way of Living, not just being righteous or pure in the heart and the like. Hence the most appropriate way to refer to Hinduism would be as Sanatana Dharma[ The Timeless Way of Life].

The other reason for why a name cannot be given to this religion is that the Concept of God is not essentially a part of the religion. One has only to accept the Extra-tempral authority of the The Vedas. The idea of God is not a necessary part of the religion. Thus we have the Six Ancient Schools of Pghilosophy(for want of a better word- the literal translation of the word used in Sanskrit for Philosophy i.e. darshanam [दर्शनम्] which loosely translates to Point of View. The six schools are. 1. sA~Nkhya 2. Yoga 3. nyAya 4.vaisheShika 5. purvamImAmsA 6. uttaramImAmsA(= Vedanta). 1, 3 and 4 are Atheistic- there is no God. 2, 5, and 6 posit a God. Among the pUrva-mImamsa school there is one that does not admit of a God too! Thus an Atheist is not an outcast as per Hindu system, if only he still abides by the way of life prescribed by The Vedas and derives extrasensory knowledge of the Workings of The Universe(s) from The Vedas.