Language is funny that way. Eadburg pronounced in middle English would sound very near yabur to our ear. Like mother.

Names, like any word, are distorted by dialect. Much like the Irish name Aisling is Ashley in the USA.

Time and dialect change lots of words. It's doubtful that Jews in 1k BC would recognize Adam and Eve as anything more than gibberish.

For instance, my username is Myrddyna, but the two d's are a th sound, it's a form of the name Merlin.