naina- vb. "lament" (NAY), also reduplicated nainaina- (VT45:37). Gerund nainië, "lament" as a noun (RGEO:66)
Quenya
nainië
noun. lament, lament, *lamentation
nairë
lament
naina-
verb. lament
noi
lament
noi noun "lament" (NAY)
nyéna-
verb. lament
nyéna- vb. "lament" (LT1:262). Compare naina- in Tolkiens later Quenya.
nairë noun "lament" (NAY)