ὀρθρίζω (orthrízō|or-thrid'-zo|verb|to get up very early in the morning)
[Grk] ὀρθρίζω LN: 67.190 GK: G3983 Hebrew: שָׁחַר‎, שָׁכַם‎
Derivation: from ὄρθρος;
Strong's: to use the dawn, i.e. (by implication) to repair betimes
KJV: --come early in the morning.
See: ὄρθρος