Calid is a medieval Latin transcription of the Arabic name Khalid (or Khaled). ==Khalid ibn Yazid== In alchemy, Kalid refers to a historical figure, Khalid ibn Yazid (died 704). He was an Umayyad prince, a brother of Muawiyah II who was briefly caliph. Prince Khalid lost the chance of inheriting the title, but took an interest in the study of alch... Found on http://en.wikipedia.org/wiki/Calid