D awal uddis: awal+talɣa, d tussna izerrwen asileɣ n wawalen i yellan d inaṣliyen. Deg usegzawal n Mounin (G) (2004:221) yenna-d:  tasnalɣa; tzerrew talɣiwin s wacu i d-mmalen wawalen-nni deg tutlayt, d ubeddel i yellan deg talɣa n wawalen akken ad tesnfali assaɣen yesɛa d wawalen deg tutlayt2.  Ɣer Dubois (J) (2002 :311) :  Deg tjerrumt tansayt, tasnalɣa ; d aḥric izerrwen talɣiwin n wawalen, s tenmegla i tzerrew tiwuriwin n tseddast. Deg tesnilest tamirant, irem n tesnalɣa yesɛa sin n yinumak igejdanen: a) Tasnlɣa d aglam n yilugan i izemren ad qaɛden taɣessa tagensant n wawalen  b) tasnalɣa d aglam n yilugan n tɣessa tagensant n wawalen d yilugan n tuddsa n wuddus deg tefyar3.  2. Tabadut n tesnawalt