Proto-Basque: *seɫHai
Meaning: 1 plain, flat land; flat (adj.) 2 field 3 ground 4 plaza, town square
Bizkaian: zelai 1, (Arratia) 3, (arc) 4
Gipuzkoan: zelai 1
High Navarrese: zelai 1, (Irun, Lezaka) 2
Low Navarrese: zelhai 1
Lapurdian: zelhai 1
Baztanese: zelai 1
Comments: Azkue explains: "zelai ... es más bien paraje llano que campo ni prado ..." 'zelai is rather flat place than field or meadow', also used as the adjective 'flat, level', exactly like PEC *ʒ_ǝlV.
