Hebrew and Greek: H176

H176
או או
אוֹ אַו ‎ ‘ô ‘av
o, av
The first form is presumed to be the “constructive” or genitival form of the second form which is short for 185 desire (and so probably in Pro 31:4); hence (by way of alternative) or, also if: - also, and, either, if, at the least, X nor, or, otherwise, then, whether.