adj. sacred, hallowed, holy
adv. sacredly, in a sacred manner
n. sacredness, sanctity, holiness
v. to sanctify, consecrate, hallow

This is the most sacred mountain in Skyrim. Zok revak strunmah. The great mountain of the world.
(Paarthurnax, 0003FA3E)

Nau daar revak golt drey Freda zahrahmiik ek Laas, ful tol ek pogaan kiir filok, ahrk osos sul qahnaar ek hokoron.
On this sacred ground did Freda sacrifice her Life, so that her many children might escape, and some day vanquish her enemies.
(Word Wall for Laas, Aura Whisper)

May refer to places that have been touched by the gods (e.g. Kyne’s involvement with the Throat of the World). Unknown if it is strictly religious or if it can refer to anything held in reverence. Also unknown what dragons would consider ‘sacred’ given they themselves are divine.

May derive from rah ‘god’.

Possibly from English ‘revere’.