Qenya
malka
adjective. how great, how much
malka aldar ólar
*how much do trees grow
There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
The correlatives ᴹQ. malka or manalka “how much or how great” appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/108), a combination of interrogative ᴹQ. ma and ᴹQ. -lka “much”. The longer form manalka could be used to ask the age of children, but manárea is more common for that purpose (see that entry for discussion). The shorter form malka also appeared with the gloss “how great” in the Quenya Verbal System (QVS) from this same period (PE22/124).