Match the daughter to her father.
Holman Bible Dictionary
2. Several explanations of this connection with Nahash have been suggested, any one of which would be sufficient to remove contradiction: (1) That Nahash was another name of Jesse, as in Isaiah 14:29, mish–shōresh nāḥāsh yēçēʾ (Qimchi); (2) That Nahash was the wife of Jesse and by him mother of Abigail, which is least probable; (3) That Nahash, the father of Abigail and Zeruiah, having died, his widow became the wife of Jesse, and bore sons to him; (4) That the text of 2 Samuel 17:25 has been corrupted, “daughter of Nahash” having crept into the text. At all events she was the sister of David by the same mother. — Edward Mack
The International Standard Bible Encyclopedia