What does the Hebrew word translated "wait" mean and how can this help us understand what it means to "wait on the LORD"?  Does waiting on the LORD involve eager anticipation or discomfort?

Key Texts: Rom 15:4-5  For whatever things were written before were written for our learning, that we through the patience and comfort of the Scriptures might have hope. Now may the God of patience and comfort grant you to be like-minded toward one another, according to Christ Jesus,

Psa 37:9  For evildoers shall be cut off; But those who wait on the LORD [i.e. prepare for and look forward to His kingdom], They shall inherit the earth.

Gen 8:15-16  Then God spoke to Noah [finally], saying, "Go out of the ark, you and your wife, and your sons and your sons' wives with you.”

1Ki 19:11-12  ...but the LORD was not in the wind; and after the wind an earthquake, but the LORD was not in the earthquake;  and after the earthquake a fire, but the LORD was not in the fire; and after the fire a still small voice.

Marshmallow test video (I had to sift through many to find it!) – Notice the girl in the pink sweater and the boy with the swiped sweater near the end, showing the difference between waiting with discomfort and waiting with eager anticipation: https://www.youtube.com/watch?v=cPTCRgk0P9o
This is a good one too: https://www.youtube.com/watch?v=Yo4WF3cSd9Q