Malbim Ayelet HaShachar Klal 535
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
ויש הבדל בין שם "דוד" ובין שם "אחי האב". ששם "דוד" לא בא רק על אחי אביו מאב, ושם "אחי האב" כולל בין מי האב בין מן האם. (קדושים ס' קיט. בהר ס' צז)
Ayelet Hashachar, translated by Betzalel Avraham Feinstein, 2021
And there is a difference between the noun דוד (uncle) and the noun אחי האב (brother of the father): The noun דוד only means the paternal brother of his father, while the noun אחי האב also includes the maternal brother of his father.