Hi W11ATO,
Try this link,
http://www.etymonline.com/index.php?term=bass
And this explanation from a talkbass forum member,
[color=#000000][font=verdana, geneva, lucida,]Way back in the dark ages when music was first being discovered and defined. There was this famous singer in Italy, Leonardo L. Bassus (that became Basso, once the italiand stopped speaking latin). He had a voice that the likes of most Europeans had never heard He could cover the E flat in the lower stave all the way up through the F above middle C. his voice was so deep, and so hip that a guitar maker[/font][/color][color=#000000][font=verdana, geneva, lucida,]built an instrument to duplicate Leonardo's voice.[/font][/color]
[left][font="verdana, geneva, lucida, lucida grande, arial, helvetica, sans-serif"][size="2"][color="#000000"]cheers[/color][/size][/font][/left]
[left][font="verdana, geneva, lucida, lucida grande, arial, helvetica, sans-serif"][size="2"][color="#000000"]Gui.[/color][/size][/font][/left]