Atharva Veda 1.25

Against fever (takmán)

As Agni, entering, burned the waters, where the maintainers of duty (dhárma-) paid acts of homage, there they declare to be thy highest birth-place; then do thou, O fever (takmán), complaisant, avoid us.

If thou art flame (arcís) or if heat (çocís), or if thy birth-place seeks the shavings (?), hrū́ḍu by name art thou, O god of the yellow one; then do thou, O fever, complaisant, avoid us.

If heating (çoká) or if scorching (abhiçoká), or if thou art son of king Varuṇa, hrúḍu by name etc. etc.

Homage to the cold fever, homage I pay to the fierce (rūrá) heat (çocís); to the one that befalls on every other day, on both days, to the third-day fever be homage.