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

top

root. cover, roof, roof, cover

A root in The Etymologies of the 1930s glossed “cover, roof” with derivatives like ᴹQ. tópa-/N. toba- “to roof”, ᴹQ. tópa “roof”, and N. tobas “roofing” (Ety/TOP). It was grouped together with and was apparently a variant of ᴹ√TUP (EtyAC/TOP), a root with a much lengthier history; see that entry for details. For purposes of Neo-Eldarin, I think this root could mean “roof” as opposed to √TUP = “cover”.

Middle Primitive Elvish [Ety/TOP] Group: Eldamo. Published by

tōp-

verb. to roof

Middle Primitive Elvish [Ety/TOP] Group: Eldamo. Published by

keper

root. ridge; knob, head, top

A rejected (Noldorin-only?) root in The Etymologies of the 1930s initially glossed “knob, head, top”, perhaps replacing the also rejected root ᴹ√KOPAR of the same meaning (Ety/KEPER; EtyAC/KEPER, KOPAR). Tolkien changed the gloss of ᴹ√KEPER to “ridge” before he rejected the entry. The most notable derivative of this root was N. ceber in N. Sarn Gebir, whose gloss is unclear but might be “?limestone, -rock”. Despite his rejection of this root, S. Sarn Gebir did appear in The Lord of the Rings (LotR/391) and was in one place translated as “Stone-spikes” (RC/327), so perhaps Tolkien restored the root, though what it might mean is unclear.

Middle Primitive Elvish [Ety/KEPER] Group: Eldamo. Published by

kast

adverb. towards the top

Middle Primitive Elvish [PE21/22] 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.