ᴱQ. aurea “sunlit, sunny” appeared in the Qenya Lexicon of the 1910s, an adjectival form of the early word ᴱQ. aure “sunlight” (QL/33). This word also appeared in the contemporaneous Poetic and Mythological Words of Eldarissa with the gloss “sunny” (PME/33).

Neo-Quenya: I think this word can be salvaged as ᴺQ. aurëa “*daytime”, an adjectival form of the later word aurë “day(light)” (RC/727), by extension also meaning brightly lit by day hence also sunlit and sunny. Thus aurëa oron “daytime mountain” is one lit by the day = “sunny mountain”, and also aurëa arin “daytime morning” is a sunny morning. Aurëa would be both warm and bright as opposed to calina which is merely bright.