lord: [OE] It is a measure of the centrality of bread to human society that the word lord denotes etymologically ‘guardian of the loaf’. It goes back to a primitive Old English *khlaibward, a compound formed from *khlaib ‘loaf’ and *ward ‘guardian, keeper’ (ancestor of modern English ward). This gradually developed in Old English via hlāfweard to hlāford, and in the 14th century it lost its middle /v/ to become the single-syllable word we know today. Lady was likewise originally based on the word loaf. => guard, loaf, ward[lord etymology, lord origin, 英语词源]