An adjective appearing as ᴱQ. kalaina or kalainea “serene” in the Qenya Lexicon of the 1910s under the early root ᴱ√KALA “shine golden” (QL/44). Kalaina also appeared in the contemporaneous Gnomish Lexicon as equivalent to G. glaim “serene, clear, fair (espec. of weather)” (GL/39), so it may originally have referred to clear weather.

Neo-Quenya: Since √KAL still referred to “light” in Tolkien’s later writings, I would retain ᴺQ. calaina “serene” for purposes of Neo-Quenya.