بَعْلَبَكّ is a single compound proper name made from «بَعْلَ» and «بَكّ».
بَعْلَ: first component, built on fatḥ in the book’s preferred analysis.
بَكّ: second component, declined like a diptote.
This is the proper name of a city, not an ordinary “first term + genitive term” construction. You need two different grammatical analyses within the one compound.
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Al-Murakkabāt — Compound Numerals, the Twelve Exception and Declining Baalbek
بَعْلَبَكّ is a single compound proper name made from «بَعْلَ» and «بَكّ».
بَعْلَ: first component, built on fatḥ in the book’s preferred analysis.
بَكّ: second component, declined like a diptote.
This is the proper name of a city, not an ordinary “first term + genitive term” construction. You need two different grammatical analyses within the one compound.