Authored by: Dr. Raza Abdullah Pasha (Hafizahullah)
Among his names are Harith and Hakim, and his kunyah (nickname) is Abu Marrah and Abu Kuroobiyyin.
[Fath al-Bari by Ibn Hajar, 6/391]
Answer:
It is said that the word Iblis is derived from the Arabic root "أَبْلَسَ", which means "to become hopeless" or "to despair". This refers to when Iblis became hopeless and started opposing and confronting.Among his names are Harith and Hakim, and his kunyah (nickname) is Abu Marrah and Abu Kuroobiyyin.
[Fath al-Bari by Ibn Hajar, 6/391]