Bible Greek and Hebrew Dictionaries combined for Word Studies
Genesis Chapter 1
lightness 1644 # elaphria {el-af-ree'-ah}; from 1645; levity (figuratively), i.e. fickleness: -- {lightness}.
lightness 6350 ## pachazuwth {pakh-az-ooth'}; from 6348; frivolity: -- {lightness}.
lightness 6963 ## qowl {kole}; or qol {kole}; from an unused root meaning to call aloud; a voice or sound: -- + aloud, bleating, crackling, cry (+ out), fame, {lightness}, lowing, noise, + hold peace, [pro-]claim, proclamation, + sing, sound, + spark, thunder(-ing), voice, + yell.