Hello there, I have found the answer on a website that is Turkish,I will summarize: It is an Arabic word,and it means ''big headed''.Bay is the root of büyük (big). Hope this helps!Cheers!
Its arabic .. we have 2 kind arabic talk and arabic written .. Bay is a word egyption people used as a title or nikname for some people we can not found this word in arabic book ..
İlk hecenin kaynağı belirsizdir. bay (zengin) sözcüğüyle birleştirilmesi abestir. Yeni Türkçe bay (bey) söz konusu olamaz.