воз-

Etymology
Traditionally explained as borrowing from Old Church Slavonic ; compare inherited cognate. However, there is an opinion about independent development, compare the words, , , which indicate the presence of a second /ъ/ in the prefix, which makes it possible to create a strong position for /ъ/ and transition to /o/. Also compare възогъловие (*възъголовие) in birch bark manuscript №469. Per Zaliznyak, prefix възъ- arose by analogy with the Old East Slavic prefixes like отъ- and подъ-.

Prefix

 * 1)  upwards, up
 * 2)  returning, re-