Vedic accent
The pitch accent of Vedic Sanskrit, or Vedic accent for brevity, is traditionally divided by Sanskrit grammarians into three qualities, udātta "raised" (acute accent, high pitch), anudātta "not raised" (grave accent, low pitch) and svarita "sounded" (circumflex, falling pitch). In Devanagari editions of the Rigveda samhita, svarita is marked with a small upright stroke above a syllable, and anudātta with a horizontal line below the syllable, and udātta is unmarked.