Word Origin & History
Leviticus
third book of the Pentateuch, c.1400, from L.L. Leviticus (liber), lit. "book of the Levites," from Gk. to Leuitikon biblion, properly the part of the Pentateuch dealing with the function of the priests who were of the tribe of Levi (a portion of the tribe acted as assistants to the priests in the temple-worship). The Heb. title is Torath Kohanim, lit. "the law of the priests."