ἄχυρον (áchyron|akh'-oo-ron|noun|chaff)
[Grk] ἄχυρον LN: 3.57 GK: G949 Hebrew: אוּר‎, בְּלִיל‎, חֹמֶר‎, מֹץ‎, תֶּבֶן‎
Derivation: perhaps remotely from χέω (to shed forth);
Strong's: chaff (as diffusive)
KJV: --chaff.