HAJJŪGH, JĒRUDHĀH BEN DĀWĪDH. — Jewish grammarian of the 10th century, regarded as the first expositor of Hebrew grammar. Very little is known about his life (even his name has been transmitted in different forms), which was spent in Spain, in Cordova.
Four works by H. are preserved, written in Arabic, on Hebrew grammar. Of these, the two concerning the study of the Hebrew verb stand out; regarding it, he was the first to formulate the theory of triliteralism. He exerted considerable influence, especially through 'Abhrāhām ibn 'Ezrā' (v. IBN 'EZRĀ' ABRAHĀM BEN MĒ'ĪB). Angelo Penna