Bible Greek and Hebrew Dictionaries combined for Word Studies
Genesis Chapter 1
whereby 4100 ## mah {maw}; or mah {mah}; or ma {maw}; or ma {mah}; also meh {meh}; a primitive particle; properly, interrogative what? (including how? why? when?); but also exclamation, what! (including how!), or indefinitely what (including whatever, and even relatively, that which); often used with prefixes in various adverbial or conjunctive senses: -- how (long, oft, [-soever]), [no-]thing, what (end, good, purpose, thing), {whereby}(-fore, -in, -to, -with), (for) why.
whereby 4482 ## men {mane}; from an unused root meaning to apportion; a part; hence, a musical chord (as parted into strings): -- in [the same] (Psalm 68:23), stringed instrument (Psalm 150:4), {whereby} (Psalm 45:8 [defective plural]).