The twelfth month of the Hebrew ecclesiastical year, and the sixth of the civil. It corresponded nearly with March.
Webster 1828 Edition
Adar
A'DAR
,
Noun.
a Hebrew month, answering to the latter part of February, and the beginning of March, the 12th of the sacred and 6th of the civil year; so named to become glorious, from the exuberance of vegetation, in that month, in Egypt and Palestine.