hon - ey - moon:
A vacation spent together by a newly married couple.
A honeymoon is the traditional holiday taken by newlyweds to celebrate their marriage in intimacy and seclusion. Today, honeymoons are often celebrated in destinations considered exotic or romantic.
A few interesting tidbits:
The etymology of the word comes from the Old English “hony moone.” Hony, a reference to honey, refers to the “indefinite period of tenderness and pleasure experienced by a newly wed couple," and how sweet the new marriage is. Moone, meanwhile, refers to the fleeting amount of time that sweetness would last. While honeymoon has a positive connotation today, it was first used as a term to warn newlyweds about waning love.
“Honeymoon” also has origins that date back to the 5th century, when cultures represented calendar time with moon cycles. Back then, a newlywed couple drank mead (the “honey”) during their first moon of marriage. Mead is a honey-based alcoholic drink believed to have aphrodisiac properties.
While most couples today travel on their honeymoon to be alone, it wasn’t always that way. Couples in 19th century Britain used their honeymoon to go on a bridal tour, where the pair traveled to visit friends and family who could not attend the wedding ceremony.
wikipedia & oxford dictionaries