A collective name for Manwe and Varda in early Valar name lists (LT1A/Súlimo). As suggested by Christopher Tolkien, its first element is likely related to wanwa “great gale”, but the meaning of its second element is unclear.
Early Quenya
manwe
masculine name. Manwe
súlimo
masculine name. Manwe
vilmar
place name. dwelling of Manwe in the high airs
wanwavoisi
collective name. Manwë and Varda
ainu
noun. a (pagan) God
valwe
masculine name. Valwe
Father of Lindo in the earliest Lost Tales (LT1/16). The meaning of this name is unclear.
ya(n)
conjunction. and
The usual word for “and” in the 1910s was ᴱQ. ya(n) (PE15/69, VT40/8). It was derived from the early root ᴱ√YA (or possibly ᴱ√(D)YṆTṆ) in the Qenya Lexicon of the 1910s (QL/104-105). In his later writings, the usual word for “and” was Q. ar, but something like ya(n) survived in the “dual” conjunction yo “both ... and”.
ô
preposition. from
A dwelling of Manwe appearing only in the Qenya Lexicon from the 1910s (QL/101), a combination of the root ᴱ√VILI having to do with air and with mar “dwelling”.