Where does “labud” come from?

labud (Serbo-Croatian) comes from Persian لابد, from Arabic [[لَا]] [[بُدَّ]].

Ancestry of “labud”, step by step

Step	Language	Word	Meaning
1	Persian	لابد	probably; necessarily
2	Arabic	[[لَا]] [[بُدَّ]]	—

labud — Etymology, Origin & Word History | Etymology Explorer