It is generally agreed to be from Proto-Indo-European *bʰel- (“to gleam”), but there is disagreement whether the word is one of the earliest Romanian loans from Proto-Slavic *bolto, or whether it is a pre-Roman word. Compare Aromanian baltã. The Romanian word also has an Albanian cognate, baltë. Cf. also Serbian blato, Russian boloto.
- IPA: [ˈbaltə]