Definition from Wiktionary, the free dictionary
Ancient Greek 
Origin unclear. Perhaps from a Proto-Indo-European *urb, with cognates such as Lithuanian virbas, Old Church Slavonic врьба (vrĭba) (Russian верба) and Latin verbēnae. Beekes argues for a Pre-Greek origin.
- (5th BC Attic): IPA: /r̥ábdos/
- (1st BC Egyptian): IPA: /r̥ábdos/
- (4th AD Koine): IPA: /ráβðos/
- (10th AD Byzantine): IPA: /rávðos/
- (15th AD Constantinopolitan): IPA: /ɾávðos/