Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
ond
place name. Ond
ondor
place name. in Gondor
ondaro
adverb. *for the very same reason
ondo
noun. stone (as a material)
ondor lantar
rocks fall
o(na)nde
adverb. to exactly the same degree
The correlatives ᴹQ. onande or onde “to exactly the same degree” appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/108), a combination of ᴹQ. on- “same” and ᴹQ. -n(de) “degree”.
Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. imandë “to exactly the same degree” using im- “same”.
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”.