text: Rudra (; ) is a Rigvedic deity associated with Shiva, the wind or storms, Vayu, medicine, and the hunt. One translation of the name is 'the roarer'. In the Rigveda, Rudra is praised as the "mightiest of the mighty". Rudra means "who eradicates problems from their roots". Depending upon the period, the name Rudra can be interpreted as 'the most severe roarer/howler' or 'the most frightening one'. This name appears in the Shiva Sahasranama, and R. K. Sharma notes that it is often used as a name of Shiva in later languages. The "Shri Rudram" hymn from the Yajurveda is dedicated to Rudra and is important in the Shaivite sect. In the Prathama Anuvaka of Namakam (Taittiriya Samhita 4.5), Rudra is revered as Sadasiva (meaning 'mighty Shiva') and Mahadeva. Sadashiva is the Supreme Being, Paramashiva, in the Siddhanta sect of Shaivism.
  Etymology
  The etymology of the theonym Rudra is uncertain. It is usually derived from the Proto-Indo-European (PIE) root rud- (related to English rude), which means 'to cry, howl'. The name Rudra may thus be translated as 'the roarer'. An alternative etymology interprets Rudra as the 'red one', the 'brilliant one', possibly derived from a lost root rud-, 'red' or 'ruddy', or alternatively, according to Grassman, 'shining'.