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.

Early Quenya

tóle

noun. centre

A noun for “centre” in the Qenya Lexicon of the 1910s under the early root ᴱ√TOLO (QL/94).

Early Quenya [LT1A/Tol Eressëa; QL/094] Group: Eldamo. Published by

tólea

adjective. central, middle

An word appearing as tōle or tōlea “central, middle” in the Qenya Lexicon of the 1910s, adjectival forms of ᴱQ. tōle “centre ” (QL/94).

Early Quenya [QL/094] Group: Eldamo. Published by

mekta

adjective. centre

An adjective for “centre” in the Qenya Lexicon of the 1910s under the early root ᴱ√MEKE (QL/60).

Early Quenya [QL/047; QL/060] Group: Eldamo. Published by

metl

noun. centre

A noun for “centre” in the Qenya Lexicon of the 1910s under the early root ᴱ√MEKE (QL/60), also mentioned in the contemporaneous Poetic and Mythological Words of Eldarissa (PME/60).

Early Quenya [PME/060; QL/060] 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.