The Greek and Hebrew that is translated as “morning star” or similar in English is translated in Dan as “the moon’s lovely wife.” (Source: Don Slager)
In Isaiah 14:12, the Latin Vulgate and, following that, the English Douay-Rheims and King James Version (Authorised Version) have translated this as Lucifer, originally meaning “light bearer. In Spanish translation it is either translated as Lucero (“morning star”) or Lucifer.