The name 'Voisha' is a rare Slavic name formed using the suffix -ta from the root -voy-, which is also represented in other names such as Voislav and Dobrovoy. In Ukraine, the name Voisha has been recorded between 1648 and 1651. There is a record "Wojsza" (MIG1 118). However, the variant of this name, specifically Voishik, appears 200 years earlier, in a record from 1444: "Woyschik" (AGZ II 74). In Poland, this name is documented throughout the 14th and 15th centuries. It is likely that the original form of the personal name Voisha resembled a noun of the fourth declension with the suffix -am, as indicated by the record from 1472 "Woyschat" (AGZ IX 16).