Humpty dumpty has 3 different meanings across 2 categories:
an egg-shaped character in a nursery rhyme who fell off a wall and could not be put back together again (late 17th century)
A Romani drink of ale boiled with brandy.
A nursery rhyme character, a short, squat, egg-like being who falls from a wall and breaks, whose name has become synonymous with anything fragile or the existence of which is precarious.