A word for “hive” in the Qenya Lexicon of the 1910s derived from the early root ᴱ√IɃI “to swarm” (QL/41).
Early Quenya
nierwes
noun. hive
nierwe
noun. hive
imbe
noun. hive
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!
A word appearing as ᴱQ. nierwes (nierwest-) “hive” in the Qenya Lexicon of the 1910s, an elaboration of ᴱQ. nier “honey bee” (QL/65); the editors indicated the stem consonants st were unclear. It appeared as nierwe “hive” in the contemporaneous Poetic and Mythological Words of Eldarissa (PME/65).
Neo-Quenya: For purposes of Neo-Quenya, I would adapt this word as ᴺQ. nieres (nieress-) “hive” as a reduction of an abstract noun form nieresse = “a bee-ness”.