Tesnulfatid tiddukkla n temsislilt tagraɣlant, i d-yeslal umesniles afransis  Paul Edouard Passy deg useggas n 1886, iswi-ines d tira n yimesla n tutlayin akk n umaḍal s yiwen unagraw, anda yel imesli ad yettwaru s yiwen n usekkil neɣ yiwen n usekkil ad yesɛu kann yiwen n yimesli.