A sign of an idea.
12. What is Lexicology?
That science which treats of the meaning of words.
13. What is Etymology?
That science which treats of the origin and derivation of words.
14. What is Orthogeny?
That science which treats of the classification of words into parts of speech.
15. What is Syntax?
That science which treats of the relation and connection of words in the construction of a sentence.
16. What is Prosody?