The spelling of the word "lunae" is based on its Latin origin, which is "Luna" meaning moon. In IPA phonetic transcription, "lunae" is pronounced /luːˈneɪ/. The initial "l" is pronounced as "lu", the "u" is pronounced as "uː", the "n" is pronounced as "n", the "a" is pronounced as "eɪ". Lastly, the final "e" is silent. Therefore, "lunae" is pronounced as "loo-nay" in English.
The word lunae is derived from the Latin word luna, which means moon. Luna itself originated from the ancient Proto-Indo-European root *lewk- meaning light, brightness. This root gave rise to various words across different Indo-European languages related to light and celestial bodies, including luna in Latin. Thus, lunae can be translated as moon or of the moon.