Aṭas n yimawalen d yidlisen ideg i d-yettwabder wawal-agi n  tensayit , yal wa yeɛreḍ ad d-yaf laṣel ansi d-yefruri wawal-a. Gar yimawalen i nesseqdec : Encyclopedia universalis (Encyclopaedia, corpus 18, Paris, 1988) deg-s yedda-d usegzi n wawal tansayit ɣef waṭas n lemɛani ad d-nefren tlata gar-asen1 :  Tansayit d taggayt n usiweḍ n tɣawsiwin i wiyaḍ.