ὕλη (hýlēhoo-lay'nounwood)
[Grk] ὕλη LN: 3.3, 3.64 GK: G5627 Hebrew: יָוֵן, סֻכָּה, שָׁמִיר
Derivation: perhaps akin to ξύλον;
Strong's: a forest, i.e. (by implication) fuel
KJV: --matter.
See: ξύλον