A word appearing as ᴱQ. kalaska or [kal]assina “brazen” in the Qenya Lexicon of the 1910s, adjectival forms of ᴱQ. kalas (kalass-) “brass” under the early root ᴱ√KALA¹ “shine golden” (QL/44).

Neo-Quenya: Since the root √KAL survives in Tolkien’s later writings, I would retain ᴺQ. calassina “brazen, *made of brass” for purposes of Neo-Quenya.