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!

Qenya 

sal(de)

adverb. *in that way (mentioned)

The correlatives ᴹQ. salde or sal appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/111), a combination of ᴹQ. sa “that [anaphoric]” and ᴹQ. -l(de) “way”.

Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. sallë “in that way (mentioned)” using the later suffix Q. -llë.