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.

Qenya 

manka-

verb. to trade

A verb given as ᴹQ. {mahta- >> māka- >>} manka- “trade” in The Etymologies of the 1930s under the root ᴹ√MBAKH “exchange” (Ety/MBAKH).

Qenya [Ety/MBAKH; EtyAC/MBAKH] Group: Eldamo. Published by

sempi

pronoun. few

A (plural) pronominal form of ᴹQ. sem(p)- appearing in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/103), as in á anta nin sempi “give me a few [pl.]”. Its adjective form is sempa (PE23/106). In drafts Tolkien gave it a singular form sempe (PE23/106 note #80).

Qenya [PE23/103; PE23/105; PE23/106] Group: Eldamo. Published by

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.