Strong's #2840: chishshur (pronounced khish-shoor')
from an unused root meaning to bind together; combined, i.e. the nave or hub of a wheel (as holding the spokes together):--spoke.
Brown-Driver-Briggs Hebrew Lexicon:
ּׁ
chishshûr
1) hub, hub of a wheel, nave
Part of Speech: noun masculine
Relation: from an unused root meaning to bind together
Usage:
This word is used 1 times:
1 Kings 7:33: "their axletrees, and their naves, and their felloes, and their spokes, were all molten."