If you want to really extrapolate links to tradition, the honeymoon is a carryover from the days when grooms abducted their brides from the neighbors. ("Will you take this woman?" Well, for a lot of human history, that's exactly what the groom did.)
Through time, those abductions became fun-filled, ritualized enactments of capturing brides. Those escapades, in Norse tradition, led to a tradition in which the bride and groom went into hiding for 30 days. During each of those days, a friend or family member would bring them a cup of honey wine, so that 30 days of consumption equaled a "honeymoon."