There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.

Middle Primitive Elvish

vaiā

noun. sea

Middle Primitive Elvish [PE21/17] Group: Eldamo. Published by

vaianer

noun. sailor

Middle Primitive Elvish [PE21/17; PE21/31] Group: Eldamo. Published by

ay(ar)

root. sea

Middle Primitive Elvish [Ety/ÁLAT; Ety/AY; Ety/BEL; Ety/LIN¹; Ety/RAM; Ety/UY; EtyAC/AY] Group: Eldamo. Published by

wāyā

noun. envelope

Middle Primitive Elvish [Ety/GEY; Ety/WAY; EtyAC/GEY] Group: Eldamo. Published by

Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.