quink

Blend of quin- +‎ quark, suggesting a fifth-level building-block of matter, as if quark were derived from Latin quartus (“fourth”).

quink (plural quinks)

1. (physics) A hypothetical fundamental particle; a preon.
   • 1987, D. G. Garan, Our sciences ruled by human prejudice

     For instance, quarks now are supposed to have their own elemental constituents: prequarks, maons, quinks, or rishons; so far there are ten kinds of them.

• Kinqu