Translation according to P. W. Joyce:
Kead or Ked; a measure of land; literally a "Hundred " (cead). See Tricha-ced, vol. i. p. 241 [reproduced below].
Subdivisions and measures of land. Among a people who followed the double occupation of tillage and pasturage, according as the country became populated, it would be divided and subdivided, and parcelled out among the people; boundaries would be determined, and standards of measurement adopted. The following was the old partition of the country, according to Irish authorities: - There were five provinces: Leinster, Ulster, Connaught, Munster, and Meath, each of which was divided into trich-céds (thirty hundreds or trichas, Meath conaining 18, Connaught 30, Ulster 36, Leinster 31, and Munster 70; each tricha contained 30 Baile-bia-tach, 12 seisreachs. The division into provinces is still retained with some modification, but the rest of the old distibution is obsolete. The present subdivision is into provinces, counties, baronies, parishes, and townlands; in all Ireland there are 325 baronies, 2,447 parishes, and about 64,000 townlands. Various minor subdivisions and standards of measurement were adopted in different parts of the country; and so far as these are represented in our present nomenclature, I will notice them here.