The suffix "on" in particle names originates from Latin, indicating a common naming convention for particles. The term "ino" is derived from Greek, meaning "little," and is often used as a diminutive, as seen in "neutrino," which translates to "little neutron." The naming of particles like "electron" and others follows this pattern, with "electron" itself being a portmanteau related to the concept of movement. The naming conventions evolved from earlier terms like "ion," which signifies something that moves with electric current. Overall, the consistent use of "on" reflects a systematic approach to particle nomenclature in physics.