Maggie, i Think we can Believe Bosworth. His work is still a leading source of information within linguistics. It's almost a couple of hundred years old but is still reprinted, with amendments and modifications, even today. However, let's not be mislead by the entry quoted by Eggy (good work finding that Eggy). 'Baed' has other meanings. For example it's also the past tense of a verb 'beddan' which means to pray. Still used in the Scandinavian languages as 'bad' (prayed) and even in the English language, albeit archaic, as 'bade' (asked).