Beware, older languages below!
The languages below were invented during Tolkien's earlier period and should be used with caution.
Remember to never, ever mix words from different languages!
Early Primitive Elvish
sovo
root.wash
A root in the Qenya Lexicon of the 1910s with variants ᴱ√SOVO and ᴱ√SOW̯O glossed “wash”, having derivatives like ᴱQ. sovo- “wash” and ᴱQ. saune “bath” (QL/85), the latter a result of the Early Qenya sound change whereby [[eq|[ei], [ou] became [ai], [au]]] (in later Quenya phonology, these generally became [ī], [ū]). In the contemporaneous Gnomish Lexicon, the primitive form was given as soƀ with derivatives like G. sô- “wash clean, bathe” and G. sôn “pure, clean” from primitive ᴱ✶sou̯na (GL/68). This last primitive form reappeared in Early Noldorin Word-lists from the 1920s where it had derivatives like ᴱQ. sauna “clean” and ᴱN. hûn “polished, burnished, shining” (PE13/148).
Neo-Eldarin: I think it is worth positing an Neo-Root ᴺ√SOW “wash, ✱bath” (and verbal variant ᴺ√SOB “✱bathe”) to salvage various early nouns having to do with baths, but would use the later root √SWAL for the verb “wash”.
A root in the Qenya Lexicon of the 1910s with variants ᴱ√SOVO and ᴱ√SOW̯O glossed “wash”, having derivatives like ᴱQ. sovo- “wash” and ᴱQ. saune “bath” (QL/85), the latter a result of the Early Qenya sound change whereby [[eq|[ei], [ou] became [ai], [au]]] (in later Quenya phonology, these generally became [ī], [ū]). In the contemporaneous Gnomish Lexicon, the primitive form was given as soƀ with derivatives like G. sô- “wash clean, bathe” and G. sôn “pure, clean” from primitive ᴱ✶sou̯na (GL/68). This last primitive form reappeared in Early Noldorin Word-lists from the 1920s where it had derivatives like ᴱQ. sauna “clean” and ᴱN. hûn “polished, burnished, shining” (PE13/148).
Neo-Eldarin: I think it is worth positing an Neo-Root ᴺ√SOW “wash, ✱bath” (and verbal variant ᴺ√SOB “✱bathe”) to salvage various early nouns having to do with baths, but would use the later root √SWAL for the verb “wash”.