Main Entry: am·pli·fi·er
Pronunciation: 'am-pl&-"fI(-&)r
Function: noun
Date: 1542
: one that amplifies; specifically : an electronic device (as in a stereo
system) for amplifying voltage, current, or power

I wonder how the word "amplifier" was originally used in 1542, since
it obviously didn't deal with anything electronic or even electical.

I picture some musician setting up his lute behind a large megaphone
to impress his friends with his new hi-fi "amplifier"!

Scott Gardner