κύριος (kýrioskoo'-ree-osnounLord)
[Grk] κύριος LN: 12.9, 37.51, 53.62, 57.12, 87.53, 87.56 GK: G3261 Hebrew: אָדֹון, אֲדֹנָי, אֲדֹנָי, אֵל, אֱלֹהִים, אֱלֹוהַּ, בַּעַל, גְּבִיר, יְהֹוָה, מָרֵא, מָשַׁל, צוּר, שַׁדַּי, שָׁלַט, שַׁלִּיט
Derivation: from κῦρος (supremacy);
Strong's: supreme in authority, i.e. (as noun) controller; by implication, Master (as a respectful title)
KJV: -- God, Lord, master, Sir.