What is the meaning of pertaining individually or severally to each of a number of people things etc?

The phrase "pertaining individually or severally to each of a number of people, things, etc." refers to something that applies to each item or person either separately or collectively. This means that the characteristics, rights, or obligations in question can be relevant to each entity on its own, as well as to the group as a whole. In legal or formal contexts, it emphasizes that the subject matter is relevant to all parties involved, whether considered one by one or together.