Khayriyya
No. Khayriyya is not a proper name found in the Quran; it is a feminine formation from the Arabic root khayr (خير), meaning goodness, and is used in Arabic-language registers.
In Urdu: خیر یّہ — نیکی کرنے والی; in Arabic: خيريّة — مشتقة من خير، دلالة على الخير والصدقة.
Yes. The name is derived from a positive Arabic root widely used in Islamic vocabulary. It carries a connotation of charity and goodness and is suitable for Muslim families seeking a classical Arabic name.
Khayriyya is very rare in contemporary practice; it appears occasionally in historical records and in some Ottoman and South Asian name lists but is uncommon as a current given name.
Possible informal short forms include Khayra, Khai, or Riya, though families often use the full form because of its formal meaning.