(upright),Book of ("the book of the upright"), alluded to in two passages only of the Old Testament. (Joshua 10:13) and 2Sam 1:18 It was probably written in verse; and it has been conjectured that it was a collection of ancient records of honored men or noble deeds. It is wholly lost.
JASHER
Meaning of JASHER in English
Smith's Bible English dictionary. Английский библейский словарь Смита. 2012