charmed quark

is so called also because of the apotropaic (evil averting) meaning of "charm". In 1970 it was realized that the old three quark theory ran into very serious problems, and, as if by magic, the existence of the charmed quark solved those problems.

We called the new [fourth] quark the "charmed quark" because we were pleased, and fascinated by the symmetry it brought to the subnuclear world. "Charm" also means a "a magical device to avert evil," and in 1970 it was realized that the old three quark theory ran into very serious problems. ... As if by magic the existence of the charmed quark would [solve those problems].

is so called because of the symmetry it brought to the subnuclear world.

Sheldon Lee GlashowThinkers

Sheldon Lee Glashow