Source : Webster's Revised Unabridged Dictionary (1913)

Abib \A"bib\, n. [Heb. ab[=i]b, lit. an ear of corn. The month
   was so called from barley being at that time in ear.]
   The first month of the Jewish ecclesiastical year,
   corresponding nearly to our April. After the Babylonish
   captivity this month was called {Nisan}. --Kitto.