Kabad means to be heavy, weighty, honored, or glorified. It appears about 115 times. The root connects physical weight with metaphorical significance — what is 'heavy' is important, glorious. The noun kavod (glory) derives from this root.
'Honor your father and mother' uses kabad — give them weight. God's glory (kavod) is His weighty, radiant presence. To glorify God is to recognize His infinite worth. A 'hardened' heart — made heavy and unresponsive — describes Pharaoh's resistance to God.