Eli ben Yehudah ha Nazir ben Zechariah, Arabic Abu Kathir Yahya al Katib ("Father of Kathir, Yahya the Scribe", fl.
Tiberias, 910s), [1] was a grammarian and philologist of the Hebrew, Arabic and Aramaic languages.
[2][3] His Arabic language treatise is entitled Usul al-Lugha al-'ibraniyya (c. 915) أصول اللغة العبرانيّة ("Origins of the Hebrew language").
[4][5] He also commented on the opinion regarding the dagesh pronunciation of the Hebrew letter Resh as articulated by the Mazya community among earlier mesorah masters of Tiberias (c. 775-825).
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