According to Todd Parker, the name "Abinadi" is very interesting because it appears to be symbolic. In Hebrew, ab means "father," abi means "my father," and nadi is "present with you," so the name Abinadi may reflect his mission; it may mean something like "my father is present with you." That is actually why they said they killed him--because he said God would come down and would be with man (see Mosiah 15:1-7). That was the charge of blasphemy they finally used to put him to death (Mosiah 17:8). [Todd Parker, "Abinadi: The Man and the Message (Part 1)," F.A.R.M.S., pp. 1-2]
“Abinadi”
According to John Tvedtnes, despite the paucity of genealogical details in the Book of Mormon, clearly the people were very concerned about their tribal affiliation. For example, Book of Mormon personal names containing such Semitic patronymic elements as Abi- ("father") and Ami- ("paternal kinsman/clan") fit the biblical pattern and are evidence for a strong patrilineal kinship system. Note the names "Abinadi" (Mosiah 11:20), "Abinadom" (Omni 1:10), "Aminadab" (Helaman 5:39), and "Aminadi" (Alma 10:2). [John A. Tvedtnes, "Book of Mormon Tribal Affiliation and Military Castes," in Warfare in the Book of Mormon, F.A.R.M.S., p. 297]