«إِنَّ الثَّمَانِينَ وَبُلِّغْتَهَا قَدْ أَحْوَجَتْ سَمْعِي إِلَى تَرْجُمَانٍ»
Eighty years of age—and may you be granted that age—have made my hearing require an interpreter.
The clause wa-bullightahā conveys a prayer for the addressee. The main construction is “eighty years have made my hearing need an interpreter.” The blessing is not part of that predication; removing it preserves the underlying statement, but loses the courteous rhetorical aside.