/ba steed"/ , n.
1. a medieval fortified town, planned as a whole and built at one time, esp. in southern France, for strategic or commercial purposes.
2. a small country house in southern France.
[ 1515-25; bastida fortification, n. use of fem. ptp. of bastir to build, equiv. to basti- ( 1 ) + -da -ta fem. ptp. suffix ]