Two forms of the same word are called doublets. Doublets come from the same root word. The root word which a doublet comes from can come from two different languages.
These words are called cognate words. They are related to each other by the root word, but they are not the same exact word.
anagrams?
Different forms of the same gene are called alleles.The different forms of a gene are called alleles.
It is called portmanteaus.
I have seen the word "doublet" used to mean two words that come from the same root word.
Alleles
The two different molecular forms of a gene are called alleles.
A word that is spelled the same with two different meanings is called a homonym.
The two different molecular forms of a gene are called alleles.
The two different molecular forms of a gene are called alleles.
sinonym
Words that have the same sound are called "homophones", or if spelled the same, "homonyms".