Ɣef waya yenna-d Dubois J. (2002, 217) Tawsit d taggayt n tjerrumt i yersen ɣef usemgired n yismawen deg tesmilt ilmend n kra n yittewlen yerzan talɣa i d-yettbinen deg yimeqimen ilelliyen, s umtawi n urbib neɣ amyag d yiwsilen n yisem ( uzwir, udfir).18 Ɣer d Bendali S. (2007, 17)  S umata, isem ɣur-s snat n tewsatin.