The origin of the name Ruth is Hebrew
This is how Ruth is written in Hebrew:
רוּת = Ruwth
This is how Ruth is written in Greek
Ῥούθ = Rhouth
The biblical meaning of the name Ruth is friendship.
The name Ruth appears in the bible in the following verses:
Ruth 1:4 KJV
And they took them wives of the women of Moab; the name of the one was Orpah, and the name of the other Ruth: and they dwelled there about ten years.
Ruth 1:14 KJV
And they lifted up their voice, and wept again: and Orpah kissed her mother in law; but Ruth clave unto her.
Ruth 1:16 KJV
And Ruth said, Intreat me not to leave thee, or to return from following after thee: for whither thou goest, I will go; and where thou lodgest, I will lodge: thy people shall be my people, and thy God my God:
Ruth 1:22 KJV
So Naomi returned, and Ruth the Moabitess, her daughter in law, with her, which returned out of the country of Moab: and they came to Bethlehem in the beginning of barley harvest.
Ruth 2:2 KJV
And Ruth the Moabitess said unto Naomi, Let me now go to the field, and glean ears of corn after him in whose sight I shall find grace. And she said unto her, Go, my daughter.
Ruth 2:8 KJV
Then said Boaz unto Ruth, Hearest thou not, my daughter? Go not to glean in another field, neither go from hence, but abide here fast by my maidens:
Ruth 2:21 KJV
And Ruth the Moabitess said, He said unto me also, Thou shalt keep fast by my young men, until they have ended all my harvest.
Ruth 2:22 KJV
And Naomi said unto Ruth her daughter in law, It is good, my daughter, that thou go out with his maidens, that they meet thee not in any other field.
Ruth 3:9 KJV
And he said, Who art thou? And she answered, I am Ruth thine handmaid: spread therefore thy skirt over thine handmaid; for thou art a near kinsman.
Ruth 4:5 KJV
Then said Boaz, What day thou buyest the field of the hand of Naomi, thou must buy it also of Ruth the Moabitess, the wife of the dead, to raise up the name of the dead upon his inheritance.
Ruth 4:10 KJV
Moreover Ruth the Moabitess, the wife of Mahlon, have I purchased to be my wife, to raise up the name of the dead upon his inheritance, that the name of the dead be not cut off from among his brethren, and from the gate of his place: ye are witnesses this day.
Ruth 4:13 KJV
So Boaz took Ruth, and she was his wife: and when he went in unto her, the LORD gave her conception, and she bare a son.