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.

Qenya 

-ro

suffix. -reason

-ro

suffix. agental suffix

li(lí)ro

adverb. *for many reasons

A correlative combination appearing in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/112), a combination of ᴹQ. li(n)- “several, many” and ᴹQ. -ro “reasons”.

ondaro

adverb. *for the very same reason

The correlative ᴹQ. ondaro appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/112), a combination of ᴹQ. on- “same” and ᴹQ. -ro “reason”.

Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. imaro “for the very same reason” using im- “same”.

qá(qe)ro

adverb. by all means, for every reason, on all accounts

The correlative ᴹQ. qáqero or qáro “by all means, for every reason, on all accounts” appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/112), a combination of ᴹQ. qa(qe)- “all” and ᴹQ. -ro “reason”. These replaced rejected ilqaro (PE23/112 note #150).

Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. illiro “for every reason” using il- “all”.

-(u)va

suffix. future suffix

Qenya [PE22/097; VT48/32] Group: Eldamo. Published by

-mo

suffix. agental suffix

rá

noun. lion

Qenya [Ety/RAW; PE19/062; PE21/40; PE21/69] Group: Eldamo. Published by

ráva

noun. lion

rú

noun. lion


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.