-ino

Meanings

1. The fermionic supersymmetric partner of a boson (a bosino), symbolized by a tilde over the nonsupersymmetric particle symbol.
2. A diminutive or endearing suffix.
3. Used to mock progressives through association with DoggoLingo.

Etymology

From Italian -ino (“-ine, -o: forming diminutives”), from the dative form of Latin -īnus. In its use in physics, originally after the model of earlier neutrino, coined by Enrico Fermi in 1933. Internet slang usages gained currency in the second half of the 2010s.