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”.
A word for “hive” in the Qenya Lexicon of the 1910s derived from the early root ᴱ√IɃI “to swarm” (QL/41).