Eating a nib is like eating a much crunchier version of unsweetened cocoa powder.
Today they're double-ended, spherical or shaped into a tiny nib.
Thus, in Sumerian we find such forms as numunnib-bi, " he speaks not to him," where the negative prefix nu and the verbal prefix mun are in harmony, but in dissimilation to the infix nib, " to him," and to the root bi, " speak," which are also in harmony.
It was first seriously assailed by Adolf Holtzmann (Untersuchungen fiber das Nib., Stuttgart, 1854), who argued that the original could not have been strophic in form - the fourth lines of the strophes are certainly often of the nature of "padding" - that it was written by Konrad (Kuonrat of the Klage), writer to Bishop Pilgrim of Passau about 970-984, and that of existing MSS.
Next follows the operation of cleaning, in which the silk is simply reeled from one bobbin to another, but on its way it passes through a slit which is sufficiently wide to pass the filament but stops the motion when a thick lump or nib is presented.