RELATED WORDS
A CONJUGATA

Latin A conjugata argument, conjugatus, “related, of the same family”

There are three types of arguments based on the fact that two words are morphologically (materially) related, depending on the nature of their relationship:

An etymological relation see true meaning of the word.
A morphological relation, see derived words.
A phonic or graphic resemblance, see homonymy.

Synonymy and antonymy are semantic relationships.