(Lat. He owes and is used to.) Where a man sues in a writ of
right or to recover any right of which he is for the first time disseised, as of a suit at a
mill or in case of a writ of quod permittat. he brings his writ in the debet et solet. Reg. Orig. 144a; Fitzh. Nat. Brev. 122, M.