Strong's #3720: orthrinos (pronounced or-thrin-os')
 from 3722; relating to the dawn, i.e. matutinal (as an epithet of Venus, especially brilliant in the early day):--morning.
Thayer's Greek Lexicon:
 ̓́ 
 
  orthrinos 
 
 1) early
 
  Part of Speech: adjective
Relation: from G3722
 
Usage:
This word is used 1 times:
Revelation 22:16: "and the bright and  morning star."