Brew comes from Old English brēowan ('to brew'), from Proto-Germanic *breuwaną, from Proto-Indo-European *bʰrew- ('to boil, seethe'). The historical trail runs through brēowan in Old English, *breuwaną in Proto-Germanic, and *bʰrew- in Proto-Indo-European. Used as a verb and noun, brew now means "make beer or tea by infusion or fermentation; a brewed drink", so the present definition can be read against the older forms and meanings. The same lexical family is also visible in derived forms such as brewer, brewery, and brewing and related forms such as broth and bread. The word is therefore part of the inherited Germanic layer of English, even where later usage has narrowed, broadened, or specialized the sense.