Lord
In Great Britain, "lord" is considered a generic, less formal way to address those with titles such as prince, earl or baron. "Lord" was also used in Biblical times to refer to a slave's master, a supreme ruler or a husband. However when "Lord" is used to refer to our God, it takes on a different meaning. The Hebrew word Yahweh, which denotes the majesty and authority of the one true God, is translated "Lord."

We read in the Ten Commandments not to misuse God's name. Traditionally Christians have obeyed this command by not using any of God's names as curse words. Yet, there is a deeper meaning: As the Lord has commanded us to follow him, we live our lives representing his good name. When we sin, even if it is insisting upon our will over God's, we discredit the Lord's name.

The title "lord" was used for people in Biblical times. It denoted dominion.
Genesis 24:18; 45:8
"Lord" is translated from "Yahweh," a word that expresses God's covenant relationship to his people.
Exodus 20:2
1 Kings 8:15
We are not to misuse the name of the Lord.
Exodus 20:7