The phrase "na petra di la" appears to be a garbled or dialectal Latin construction. Here's the linguistic breakdown:
"In illa petra" → "On that rock" or "At the rock." This aligns with the etymology of Petra, Jordan—the Nabataean city carved into rose-red sandstone cliffs, known in antiquity as Raqmu but called Petra ("The Rock") by Greeks/Romans.
UNESCO World Heritage Site (1985); capital of Nabataean Kingdom (4th c. BCE–106 CE); famous for Al-Khazneh ("The Treasury"), Ad Deir ("The Monastery"), and advanced hydraulic engineering. Rediscovered by Burckhardt (1812).
"Na petra di la" ≈ "On the rock" in a Romance-influenced Latinate form, referencing the city of Petra. Not standard Latin; likely a later dialectal or poetic variant.