The name Maud means 'powerful fighter' or 'strength in battle'. The name was popular in the 19th century because of Tennyson's poem Maud. The surname Bailey seems to have several possible origins. One of these means 'person of high rank; steward; official' and another means 'enclosure', as in the enclosed courtyard of a motte-and-bailey castle. (It is also interesting to note the connection between the words motte and bailey in relation to character names).