ὄρθρος
orthros
or'-thros
From the same as G3735; dawn (as sunrise, rising of light); by extension morn
KJV Usage: early in the morning.
G3719 ὀρθρίζωὀρθρίζω
orthrizō
or-thrid'-zo
From G3722; to use the dawn, that is, (by implication) to repairbetimes
KJV Usage: come early in the morning.
G3720 ὀρθρινόςὀρθρινός
orthrinos
or-thrin-os'
From G3722; relatingto the dawn, that is, matutinal (as an epithet of Venus, especially brilliant in the early day)