It is possible that the inflexional forms are also, at least partly, of similar origin.

This retcon took place because of the characters' very similar origins.

The term "salt & pepper" may refer to a different pattern of similar origin.

Sivuhelaya may also be a name of similar origin, although it is very obscure.

A similar developmental origin suggests they are the same structure, and thus likely derived from a common ancestor.

The term can also be used to describe any noise source, even if solely mathematical, of similar origin.

If these two spacecraft have similar origins, I see several possibilities.

The dark rays from Matabei may have a similar origin.

It has a similar origin as the name Andersen.

This version has an origin somewhat similar to that in the comics.