A correlative combination appearing as {láqalde >>} ᴹQ. (a)láqalde “in no way, by no method, nohow” in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/111), a combination of ᴹQ. láqa “none” and ᴹQ. -l(de) “way”.
Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. allë “in no way” using later ᴹQ. alla “none” also from DRC, along with the later suffix -llë.
A correlative combination appearing as {láqainen >>} ᴹQ. (a)láqainen “by no means” in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/111), a combination of ᴹQ. láqa “none” and the instrumental suffix ᴹQ. -nen.
Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. allanen “by no means” using later ᴹQ. alla “none”, also from DRC.