Tanhum of Jerusalem

Tanhum ben Joseph
Tanhum ha-Yerushalmi
Born1220 (1220)
Died27 June 1291(1291-06-27) (aged 70–71)
Philosophical work
EraMedieval philosophy
RegionPalestine
Main interestsPhilology, Linguistics
Notable worksMurshid al-kāfī
Kitāb al-Ijāz wal-Bayān

Tanhum ben Joseph of Jerusalem, also known as Tanḥum ha-Yerushalmi (1220–1291), was a 13th-century Hebrew lexicographer and biblical exegete who compiled several Hebrew works, the most notable of which being a lexicon on Mishnaic words entitled Murshid al-kāfī ("The Sufficient Guide"). Tanhum's learning in Jewish studies was so pervasive that he was coined the name "the Abraham ibn Ezra of the Levant."