From PIE *bʰrew- (to brew), linking bread and beer through fermentation — and 'lord' is literally 'loaf-keeper,' 'lady' is 'loaf-kneader.'
Food made of flour, water, and yeast mixed together and baked.
From Old English 'brēad' (piece, bit, morsel, bread), from Proto-Germanic *braudą (bread), possibly from PIE *bʰrew- (to boil, to brew, to make broth). The original meaning may have been 'a piece of fermented food' — connecting bread-making to brewing through the shared process of fermentation. In Old English, the standard word for bread was 'hlāf' (→ 'loaf'); 'brēad' originally meant 'a piece' or 'morsel' and only gradually became the main word for the food itself. Key
'Lord' comes from Old English 'hlāfweard' — 'loaf-ward,' the keeper of the bread. 'Lady' comes from 'hlǣfdige' — 'loaf-kneader,' the one who makes the bread. English feudal titles literally mean 'bread-keeper' and 'bread-maker,' revealing that control of the food supply was the basis of medieval authority.