A word appearing as ᴱQ. sovasta or sovalle “washing, bathing” in the Qenya Lexicon of the 1910s, a noun form of ᴱQ. sovo- “wash” (QL/86).
Neo-Quenya: I retain ᴺQ. sov- “wash” for purposes of Neo-Quenya, so I would retain ᴺQ. sovallë “washing, bathing” as well.
Qenya name (for a ritual?) appearing in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa from the 1910s (QL/86; PME/86), it is simply sovalle “washing, bathing” used as a name.