A correlative combination appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/111), a combination of ᴹQ. qa(qe)- “all” and the similative suffix ᴹQ. -ndon.
Qenya
qa(qe)nde
adverb. in all ways, to every extent
qa(qe)ndon
adverb. *in all fashions
qa(qe)-
prefix. all, all the (with plurals), every; each, every
The correlative ᴹQ. qande or qaqende “in all ways, to every extent” appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/111), a combination of ᴹQ. qa(qe)- “every” and ᴹQ. -n(de) “extent”.
Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. ilindë “in all degrees, to every extent” using il- “all”.