Nushirvan
The epithet Anūshirvān (Nushirvan) is famously associated with Sasanian king Khosrow I; it means 'immortal soul' in Middle Persian and appears in Persian histories.
While pre-Islamic in origin, the epithet continued in Persianate Muslim societies and may be used historically and occasionally as a male given name; it is not a Quranic name.
From Middle Persian anōšag 'immortal' + rōwān 'soul' — commonly rendered 'immortal soul' or 'of the immortal soul'.
It is rare in modern usage, mostly preserved in historical texts, literary references, and occasional family names or honorific usages in Persian-speaking areas.
Common Romanizations include Nushirvan, Anushirvan, Nūshirvān. Approximate pronunciation: /nuːʃɪrˈvɑːn/.