n t, m. (cethardae) fourness, quaternity : in cethardataid gl. (ne) quaternitatem (faciamus in Trenitate), Tur. 86 . ce doberthar a cethair immon crand . . . is filliud filles imme a cethardata, Corm. Y 447 . cethardattu cuirp .i. ǽr ┐ talam, tene ┐ usque, Fél.² clxxxvi 3 .