Ciovo Surname Origination

Private User Can you maybe help, from a literature, if you maybe have , or add some sources for above mentioned question, what a Mitchell ask. In advance, thanks.

Mitchell Gruich III Otok Čiovo / Island Ciovo project page is here: https://www.geni.com/projects/Island-Ciovo/41254

https://www.scribd.com/document/404245780/N-Bezic-Bozanic-Trogirski...
samo kao nadimak u Trogiru se spominje

I believe it is derived from Plazibat, it is a surneme of nickname origin (meanning is actually quite funny).
See for example https://www.ogorje.net/prezime/119/plazibat.html

Yes Jadra, I also mentioned and respond in msg, a similar same said to Mithecll, when he asked me about that. So, maybe in the history were two different surnames of two famillies, and united in one, as Plasibacich (Plassibacich, Plazibacich, Plazzibacich, etc. and in other different forms written by priests), how was written in this form in records, and became from a surnames Plazibat and Bačić (Bacich) and later became as family nickname Plazibačić (Plasibacich) of this part what Mitchell mentioned, and after that was been a one surname. Before all this, in the history was exists double surnames on both sides (male, females), and later to the became through cronology during different periods is become a one surname, from a family nickname. What, I think in this case, a possible was been with this surname, based on logical view and thinking. Mitchell Gruich III Guich III, but for find a proof, need to look and search deeply l in the records and other archive documents, like a cadastral, or of notars, where maybe was mentioned this (?), and when exact in which period, time or year.
* https://actacroatica.com/en/surname/Plazibat/
* http://www.prezime.net/Plazibat
* https://actacroatica.com/en/surname/Ba%C4%8Di%C4%87/
* http://www.prezime.net/Ba%C4%8Di%C4%87