Alassë (joy/merriment) + -a (adjectival suffix)
Quenya
alassë
joy, merriment
alassëa
`Cな#,F`C adjective. happy, joyous
alassëa
adjective. joyful, happy, *merry
Noldorin
gell
noun. joy, triumph
glas
noun. joy
glas
noun. joy
glass
noun. joy
Sindarin
gell
joy
(i ’ell) (triumph), pl. gill (i ngill = i ñill).
glass
joy
1) glass (i **lass, constuct glas), pl. glais (in glais), 2) gell (i **ell) (triumph), pl. gill (i ngill = i ñill).
glass
joy
(i ’lass, constuct glas), pl. glais (in glais)
alassë (1) noun "joy, merriment" (GALÁS) [VT42:32; a gloss "mirth" was deleted, VT45:14]