Its etymology is Saxon, it being derived from a word meaning "loaf-giver;" which refers to the custom of females distributing bread among retainers, after the feasts which were held in the halls of barons. In later periods it has been used, under monarchical governments, to designate women of rank, the wives of knights, and the daughters of earls.
Lady means "bread-giver" or "loaf-giver," and Lord means "maintainer of laws," and both titles have reference, not to the law which is maintained in the house, nor to the bread which is given to the household; but to law maintained for the multitude, and to bread broken among the multitude.
The king's wife was not called queen, but lady; and what do you think lady means? It means "loaf-giver" giver of bread to her household and the poor. so a lady's great work is to be charitable. The last very prosperous king was Alfred's great-grandson, Edgar, who was owned as their over-lord by all the kings of the remains of the Britons in Wales and Scotland.