Answer:
Affix - This is a syllable or word element that can only occur in front of a root or stem, or at the end of a root or stem.
Cognates - These are words that have a common origin.
Decode - This is when we analyze a spoken or written word to discover its pronunciation and meaning.
Derivation - This is the process by which a word is created from other words.
Prefix - This can be added to the beginning of a word to change the word's meaning.
Root word - This is a word related in origin, as certain words in genetically related languages descended from the same ancestral words. It is also the part of the word after all affixes have been removed.
Suffix - This can be added to the end of a word to change the word's meaning.
Etymology - This is the origin and history of a word which shows the language or languages from which it is borrowed.
Explanation:
Here, you were given terms from the fields called etymology and morphology.
When you're unsure about what a word means, you can look it up in a dictionary - an alphabetically arranged listing of words that contains different information about them, such as their definitions, examples, origin, pronunciation, etc.
Another thing that could help you when you have questions such as this one is a glossary - an alphabetically arranged listing of words that contains words related to a certain subject.