Probably imitative in origin. Compare Slavic blejati, German bellen, Latin bālāre (whence Spanish balar). The Romanian word was thought by some to be linked to or derived from the Latin one.
a bălăi (third-person singular present bălăiesc, past participle bălăit) 4th conj.
- (uncommon) to baa, bleat, blat
- ^ Romanian Explanatory Dictionary