Source : Webster's Revised Unabridged Dictionary (1913)

Honeymoon \Hon"ey*moon`\, n.
   The first month after marriage. --Addison.

Source : WordNet®

honeymoon
     n 1: a holiday taken by a newly married couple
     2: the early usually calm and harmonious period of a
        relationship; business or political
     v : spend a holiday after one's marriage; "they plan to
         honeymoon in Hawai'i"