חשּׁר chishshûr khish-shoor' From an unused root meaning to bind together; combined, that is, the nave or hub of a wheel (as holding the spokes together)KJV Usage: spoke.
Brown-Driver-Briggs' Hebrew DefinitionsBDB3238 חשּׁר 1. hub, hub of a wheel, nave Origin: from an unused root meaning to bind together TWOT: 774b Parts of Speech: Noun Masculine
חשׁרה chashrâh khash-raw' From the same as H2840; properly a combination or gathering, that is, of watery cloudsKJV Usage: dark.