Tislit
No. Tislit is Amazigh (Berber) in origin; it comes from Tamazight vocabulary meaning 'bride' and is part of North African indigenous naming traditions.
Tislit appears in Amazigh oral tradition and regional toponymy, notably Lac Tislit in the Moroccan High Atlas, and in ethnographic accounts of Berber legends.
No. The name is cultural-linguistic and linked to Amazigh heritage rather than to Quranic or hadith texts.
Yes; while Amazigh in origin, it is used among Amazigh-speaking Muslim communities and may be chosen by families valuing Berber heritage.
In Berber legend the male counterpart name Isli is associated with the same stories and place-names that reference Tislit.