Per Wikipedia, “Speakers of Agaw languages, such as Qemant citizens, told researchers that Kayla means "one who has not crossed the stream" or "he or they that have not crossed". This refers to the observance of Shabbat rules among Ethiopian Jews, necessitating the avoidance of activities prohibited on Shabbat.”Source: https://en.m.wikipedia.org/wiki/Kayla_(Beta_Israel)
Source: https://en.m.wikipedia.org/wiki/Kayla_(Beta_Israel)