"Marriage" is just a word. Meanings change all the time.
Word > Original Meaning
awful > deserving of awe
brave > cowardice (as in bravado)
counterfeit > legitimate copy
girl > young person of either sex
guess > take aim
knight > boy
luxury > sinful self indulgence
neck > parcel of land (as in neck of the woods)
notorious > famous
nuisance > injury, harm
quick > alive (as in quicksilver)
sophisticated > corrupted
tell > to count (as in bank teller)
truant > beggar