Answer: Word stem or base.
the part of the word, after all, affixes have been removed, is called the Word stem.
Step-by-step explanation:
Word stem is a process of extracting the stem or the root of a word from its original form to its simplest form. Word stems are essential in vocabulary building, language analysis, and natural language understanding.
The root word has no prefix or suffix. it is the simplest form of the word.