What is denotation?
the ideas, images, and feelings associated with a word
the origin of a word
the part of speech of a word
the literal definition of a word

Hello!

A word's denotation is the literal definition of a word. There is often only one or two literal definitions of a word in the dictionary.
A word's connotation can have several different meanings, depending on the person who uses the word. The connotative meaning includes the ideas, images, and feelings associated with the word, which can differ depending on people's different feelings and ideas toward it.

The study of the origin of a word is known as "etymology," which also explains how the words have changed over time. 

I hope this helps you!