What is "nasir"

Nasir ( Nāṣir) is an Arabic masculine given name which can mean "helper" or "one who gives victory" (grammatically the Stem I masculine singular active participle of consonantal verb root n-ṣ-r). The female form of the name is Nasira ( Nāṣira).

Naseer is a transcription of Naṣīr, a related word of similar meaning also used as a name.