Surnames Pino, Pinardi, Pinelli, Pini, Pinato and more

The surnames Pini, Pino, Pin, Pina, Pinalli, Pinella, Pinèlli, Pinèllo, Pinétti, Pinato, Pinàt, Pineschi, Pinésso derive from the hypocoristic Pino, from Giuseppino (Giuseppe) or sometimes from Filippino (Filippo) or Iacopino (from Iacopo) .
In the case of Pinardi, present in Lombardy, the suffix -ardi (belonging indicator) could therefore refer to the descendants of a Pino (hypocoristic of Giuseppe) but could also derive from the fusion of the name Pino with the Germanic suffix hart (hard) meaning something like “Giuseppe the strong”.
Let us remember that the hypocoristic is the phonetic modification (generally an abbreviation) of a personal name, they are those affectionate, family or euphemistic names used to supplant a real name. It is characterized because the words are subjected to a certain deformation, often being apocopes, apheresis or diminutives of the true proper name.