Strong's #853: 'eth (pronounced ayth)
 apparent contracted from 226 in the demonstrative sense of entity; properly, self (but generally used to point out more definitely the object of a verb or preposition, even or namely):--(as such unrepresented in English).
Brown-Driver-Briggs Hebrew Lexicon:
 
  'êth 
 
 1) sign of the definite direct object, not translated in English but generally preceding and indicating the accusative
 
  Part of Speech: untranslated particle
Relation: apparent contracted from H226 in the demonstrative sense of entity
Usage:
This word is used 7302 times:
2 Samuel 19:30: "Yea, let him take   all, forasmuch as my lord"
2 Samuel 19:31: "Jordan with the king, to conduct him over   Jordan."
2 Samuel 19:32: "years old: and he  had provided  the king of sustenance while he lay at Mahanaim;"
2 Samuel 19:35: "can thy servant taste   what I eat or what I drink?"
2 Samuel 19:36: "Thy servant will go a little way over   with the king: and why"
2 Samuel 19:37: "my lord the king; and do  to him  what shall seem good"
2 Samuel 19:38: "with me, and I will do  to him  that which shall seem good unto thee: and whatsoever"
2 Samuel 19:39: "And all the people went over   Jordan. And when the king was come over, the king"
2 Samuel 19:40: "the people of Judah conducted   the king, and also half the people"
2 Samuel 19:41: "of Judah stolen thee away, and have brought   the king, and his household, and all David's"
2 Samuel 19:41: "David's men with  him, over  Jordan?"
2 Samuel 19:43: "And the men of Israel answered   the men of Judah, and said, We have ten"
2 Samuel 19:43: "be first had in bringing back   our king? And the words of the men of Judah"
2 Samuel 20:3: "at Jerusalem; and the king took   the ten women his concubines, whom"
2 Samuel 20:4: "to Assemble  me  the men of Judah within three days,"
2 Samuel 20:5: "So Amasa went to assemble  the men of  Judah: but he tarried longer than the set time"
2 Samuel 20:6: "did Absalom: take thou   thy lord's servants, and pursue after"
2 Samuel 20:12: "the people stood still, he removed   Amasa out of the highway into the field,"
2 Samuel 20:22: "the people in her wisdom. And they cut off   the head of Sheba the son of Bichri,"
2 Samuel 21:1: "his bloody house, because he slew   the Gibeonites."
2 Samuel 21:3: "for you? and wherewith shall I make the atonement, that ye may bless   the inheritance of the LORD?"
2 Samuel 21:8: "But the king took   sons of Rizpah the daughter of Aiah,"
2 Samuel 21:8: "whom she bore unto Saul,   Armoni and Mephibosheth; and the five sons"
2 Samuel 21:10: "the daughter of Aiah   sackcloth, and spread it for her upon the rock,"
2 Samuel 21:11: "And it was told David   Rizpah the daughter of Aiah, the concubine"
2 Samuel 21:12: "And David went and took   the bones of Saul and the bones of Jonathan"
2 Samuel 21:12: "where the Philistines had hanged them, when the Philistines had slain  "
2 Samuel 21:13: "And he brought up from thence   of Saul and the bones of Jonathan"
2 Samuel 21:13: "and the bones of Jonathan his son; and they gathered   the bones of them that were hanged."
2 Samuel 21:14: " And  the bones of Saul his son buried they in the country of Benjamin"
2 Samuel 21:15: "and his servants with him, and fought against   the Philistines: and David waxed faint."
2 Samuel 21:16: "with a new sword, thought to have slain   David."
2 Samuel 21:17: "of Zeruiah him, and smote   the Philistine, and killed him. Then the men"
2 Samuel 21:17: "out with us to battle, that thou quench not   the light of Israel."
2 Samuel 21:18: "Sibbechai the Hushathite slew   Saph, which was of the sons of the giant."
2 Samuel 21:19: "of Jaare-oregim, a Bethlehemite, slew  the brother of  Goliath the Gittite, the staff of whose spear"
2 Samuel 21:21: "And when he defied   Israel, the son of Shimea the brother of David"
2 Samuel 21:22: "These   four to the giant in Gath, and fell by the hand"
2 Samuel 22:1: "And David spoke unto the LORD   the words of this song in the day"
2 Samuel 22:20: "He brought me forth also into a large place:  also into a large place: he delivered he delighted"
2 Samuel 23:12: "of the ground, it, and slew   the Philistines: and the LORD wrought a great"
2 Samuel 23:16: "David: nevertheless he would not drink thereof, but poured it out  thereof, but poured it out unto the LORD."
2 Samuel 23:18: "among three. And he lifted up   his spear against three hundred,"
2 Samuel 23:20: "of Kabzeel, who had done many acts, he slew   two lionlike men"
2 Samuel 23:20: "lionlike men of Moab: he went down also and slew   a lion in the midst"
2 Samuel 23:21: "And he slew   a goodly man: and the Egyptian"
2 Samuel 23:21: "but he went down to him with a staff, and plucked   the spear out of the Egyptian's hand,"
2 Samuel 24:1: "against Israel, and he moved   David against them to say, Go, number"
2 Samuel 24:1: "against them to say, Go, number   Israel and Judah."
2 Samuel 24:2: "from Dan even to Beer-sheba, and number  ye  the people, that I may know"