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 

inikka

*as little as, as small as

The correlative ᴹQ. inikka appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/111), a combination of the relative pronoun ᴹQ. i and ᴹQ. -(n)ikka “small”.

Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. yanicca “as little as, as small as” using the relative pronoun ya more commonly used in declined forms in later writings, such as Q. yassë “where [relative]”.