Strong's Concordance H1966

Original Word: הֵילֵל
Transliteration: hêylêl
Phonetic Spelling: hay-lale'
from H1984 (in the sense of brightness); the morning-star; lucifer.

Usages throughout the bible

Isaiah 14:12 - How art thou fallen from heaven, O Lucifer, H1966 son of the morning! how art thou cut down to the ground, which didst weaken the nations!