subota
Subota is the word for Saturday in several South Slavic languages, notably Bosnian, Croatian, Serbian, and Montenegrin. It names the sixth day of the week in everyday speech, in calendars and timetables, and is used in both secular and religious contexts. The term is inherited from older Slavic vocabulary and is cognate with related terms for Saturday across the Slavic languages.
Etymology: Subota derives from Proto-Slavic *subota*, ultimately from the word for Sabbath. The standard account traces
Subbotnik: In Russian, the related word Subbotnik refers to a day of voluntary labor held on Saturdays
Usage and culture: In contemporary calendars following ISO conventions, weeks typically begin on Monday, making Saturday