portion: the share that falls to someone, whether land, goods, or one's lot in life.
At its core this word names a part that has been parceled out and assigned, the share that comes to a particular person or group. It belongs to the world of dividing things up fairly: splitting the land among the tribes, dividing plunder among soldiers, handing the priests their due. Whatever the thing being divided, this word is the piece you walk away with.
From that concrete base the word stretches in two directions. Outward, it names an actual stretch of ground, a plot or field, as when a place is called the tract belonging to a town. Inward, it becomes a way of talking about what life itself hands a person: the enjoyment they get from their work, the fate appointed to them, even the doom God assigns to the wicked. The book of Ecclesiastes leans on it again and again to ask what good a person really gets to keep under the sun.
The word reaches its height when Israel says that the LORD himself is their portion. The tribe of Levi received no land like the others; instead God said he would be their share. The Psalms and Lamentations turn that arrangement into the deepest kind of trust: when everything else is gone, God is the portion that remains. So the same plain word that divides a field also carries one of the Bible's boldest claims about where a person's true inheritance lies.