(Will you call upon Ba`l and forsake the Best of creators,) Ibn `Abbas, may Allah be pleased with him, Mujahid, `Ikrimah, Qatadah and As-Suddi said that the word Ba`l means lord. `Ikrimah and Qatadah said, "This is the language of the people of Yemen." According to another report from Qatadah, it is the language of Azd Shanu'ah. `Abdur-Rahman bin Zayd bin Aslam narrated from his father that it is the name of an idol which was worshipped by the people of a city called Ba`labak (Baalbek) which is to the west of Damascus. Ad-Dahhak said, "It is an idol which they used to worship."
The word: إِلْ يَاسِينَ (il ya sin) used in: سَلَامٌ عَلَىٰ إِلْ يَاسِينَ (Salam on it ya sin -130) is also the very name of Sayyidna Ilyas (علیہ السلام) . The people of Arabia are used to adding the letters 'ya' and 'nun' with non-Arab names fairly often - for example, (sina: Sinai) could take the form of سِینِین (sinin). Similarly, here too, two letters have been added.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 132–137
Elijah (Elias or Ilyas) was probably a descendant of Aaron (Harun). He lived in the ninth century B.C. at a time when Israel (Palestine) was governed by the Jewish King, Ahab, while Lebanon, was ruled by Phoenicians, polytheists who worshipped Baal (ba‘l). Ahab married the daughter of the King of Lebanon. Under the influence of their Queen, the Jews began worshipping Baal. Then, Elijah calling upon the Jews to worship One God, which was their original (ancestral) religion. A detailed account of Elijah is given in the Bible. Only a few Jews supported Elijah in his mission. Many of them opposed him to the extent of hatching plots to murder him. But Elijah subsequently attained a high status among the Jews. Now, in Jewish history, he is treated as a great prophet.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.