KISLEV (kĭz'lěv, kjv Chisleu). The ninth month of the Hebrew ritual year (Neh.11.1; Zech.7.1).

CHISLEV kĭz’ lĕv (כִּסְלֵו, H4075; LXX Χασελευ, KJV CHISLEU). Akkadian name of the month before the winter solstice (Neh 1:1; Zech 7:1; and in Maccabees). According to the Babylonian Chronicle, Nebuchadnezzar’s march on Jerusalem (598 b.c.) began in Chislev. See Calendar.

International Standard Bible Encyclopedia (1915)

(kiclew; the King James Version Chisleu, the Revised Version (British and American) "Chislev"): The 9th month of the Jewish year, corresponding to December. The word is found in Ne 1:1 and Zec 7:1. The derivation is uncertain.

See Calendar.