The Hebrew noun abaq (אָבָק) means dust, fine powder, or loose earth — the particles that rise when something crushes dry ground. It appears in contexts of battle dust rising (Isaiah 5:24), the fine dust of the scales (Isaiah 40:15), and cosmic imagery. It is related to but distinct from aphar (H6083), the dust of creation and death in Genesis 2:7. Abaq emphasizes the fineness and lightness of dust — particles easily scattered by wind.
Abaq belongs to the Old Testament's theology of dust — a profound cluster of images for human frailty, mortality, and creatureliness. Isaiah 40:15 declares that the nations are as dust on the scales before God — the greatest human power is infinitely small before the Creator. The dust (abaq) rising from battle (Isaiah 5:24) pictures judgment consuming the wicked like chaff. Yet dust also carries hope: God stoops to dust to create (Genesis 2:7 with aphar), and the Incarnation is the ultimate stooping — "the Word became flesh" and walked in the dust of Palestine. The disciples were told to shake the dust from their feet (Matthew 10:14) — dust as the symbol of rejection and finality.