'Grain' in the Bible

And Ruth the Moabitess said unto Naomi, Let me now go to the field, and glean among the ears of grain after him in whose sight I shall find favor. And she said unto her, Go, my daughter.

And at meal-time Boaz said unto her, Come hither, and eat of the bread, and dip thy morsel in the vinegar. And she sat beside the reapers, and they reached her parched grain, and she did eat, and was sufficed, and left thereof.

And when Boaz had eaten and drunk, and his heart was merry, he went to lie down at the end of the heap of grain: and she came softly, and uncovered his feet, and laid her down.