1. A town in the Caspian coastal province of Gīlān [q.v.] in north-western Persia, in long. 50° 0′ 20″ E. and lat. 37° 12′ 30″ N. It is situated on the plain to the east of the lower reaches of the Safīd-Rūd and to the north of the Dulfek mountain, and on the small river Čom-k̲h̲ala or Purdesar, but at some 14 miles/20 km. from the Caspian Sea shore.

Lāhīd̲j̲ān does not seem to have been known as such to the earliest Arabic geographers, though legend was to attribute its foundation to Lāhīd̲j̲ b. Sām b. Nūḥ. It does, however, appear in the Persian Ḥudūd al-ʿālam (372/982) as Lāfd̲j̲ān, one of seven…