A word appearing only in its mutated form bîn in the name S. Cûl Bîn “Little Load” (RC/536).
Conceptual Development: The Gnomish Lexicon of the 1910s had G. pinig “tiny, little” (GL/64), likely based on the early root ᴱ√PINI or √PIKI having to do with small thinks (QL/73). The Etymologies of the 1930s had N. pigen “tiny” under the root ᴹ√PIK (Ety/PIK).
Similar words occur in Gnomish (pinig "tiny, little", PE/11:64) and in Qenya (pinea "small" etc., PE/12:73)