Slavic names - Wikipedia
https://en.wikipedia.org/wiki/Slavic_namesOld Slavic names were built with one or two lexemes: Single-lexeme names were derived from ordinary or adjectival words and were usually, though not always, borne by peasants, e.g.: Baran (ram), Szydło (awl), Kąkol (cockle), Broda (beard, chin), Żyła (vein), Uchacz (ear-man), Łopata (shovel), Żaba (frog), Rus (Ruthenian/Russian man), Cich (silent man), etc. Many names of this kind are used today, for example:
Early Slavs - Wikipedia
https://en.wikipedia.org/wiki/Early_SlavsAncient Roman and Greek historical sources refer to the early Slavic peoples as Veneti and Spori in the 1st and 2nd centuries AD, and later in the 5th and 6th centuries also as Antes and Sclaveni. The 6th-century Byzantine historian Jordanes referred to the Slavs in his 551 work Getica, reporting that "although they derive from one nation, now they are known under three names, the Veneti, Antes and Sclaveni" (ab una stirpe exorti, tria nomina ediderunt, id est Veneti, Antes, Sclaveni). Procopiuswrote …
Slavic Names - Behind the Name
https://www.behindthename.com/names/usage/slavicAdela f English, Spanish, Romanian, Polish, Slovak, Ancient Germanic. Originally a short form of names beginning with the Germanic element adal meaning "noble". Saint Adela was a 7th-century Frankish princess who founded a monastery at Pfazel in France. This name was also borne by a daughter of William the Conqueror.