въз

From Proto-Slavic *vъz (“above”), continuing Old Church Slavonic въз (vŭz).

въз • (vǎz)

1. (dated) above, at
2. (dated) against
3. on account of

   въз основа на ― vǎz osnova na ― based on

• воз (voz) (Western dialects)

• въз in Речник на българския език
• Georgiev Vl. I., editor (1971), “въз”, in Български етимологичен речник [Bulgarian Etymological Dictionary] (in Bulgarian), volume 1, Sofia: Bulgarian Academy of Sciences, page 203

Probably from Proto-Slavic *ǫzъ (“bond, tie”) (ap B) or less likely *ǫza (“chain”) (ap A).

Bulgarian Etymological Dictionary explains the term as a recent derivative from Bulgarian везя (vezja, “to web, to braid”) (probably influenced by Bulgarian въже (vǎže)), however, there are attested forms already in Old Church Slavonic.

въз • (vǎz) m

1. (dialectal) binder, fastener (of bag, shoes, cloths, apron)

   Synonym: връзка (vrǎzka)

• въза̀ f (vǎzà)
• въ̀зе n (vǎ̀ze) (diminutive)

• съюз (sǎjuz, “union”) (loanword from Russian)
• възел (vǎzel, “knot, node”)
• въже (vǎže, “rope”)

• въза in Речник на българския език
• Georgiev Vl. I., editor (1971), “въза”, in Български етимологичен речник [Bulgarian Etymological Dictionary] (in Bulgarian), volume 1, Sofia: Bulgarian Academy of Sciences, page 203