Nisroch was an Assyrian deity whose temple was the place where Sennacherib was killed by his sons. The identity of the god is otherwise uncertain.
Definition
Nisan was the first month of the Jewish sacred year. It was also called Abib in the Pentateuch and is associated with the meaning “month of flowers.”
Biblical Usage
Passover occurred during Nisan. The month is named in the post-exilic records of Nehemiah and Esther.
Historical Background
Nisan corresponds approximately to April and derives from the Assyrian term nisannu, meaning “beginning,” according to the supplied material.
Historical Bible Dictionaries
Easton's Bible Dictionary
Month of flowers, (Neh. 2:1) the first month of the Jewish sacred year. (See ABIB.) Assyrian nisannu, “beginning.”
Smith's Bible Dictionary
[Month]
International Standard Bible Encyclopedia (ISBE)
<p>ni'-san (nican): The first month of the Jewish year in which occurred the Passover and which corresponds to April. The month is the same as Abib, which occurs in the Pentateuch. Nisan occurs in Ne 2:1 and Es 3:7. It denotes "the month of flowers."</p><p>See CALENDAR.</p>