Here are some list of words that you may not have known 

1. Hippopotomonstrosesquipedaliophobi— (noun) - Ironically, this word means the fear of long words. It's one of the longest words in the English language and quite the tongue-twister!

2. Biblioparist - (noun) - Someone who reads in bed. 

3. Lethologica - (noun) - The temporary inability to remember a word or a name when you need it. It's that tip-of-the-tongue feeling.

4. Sesquipedalian - (adjective) - This word describes something that is long-winded or uses long words.

For example, "Her sesquipedalian speech left the audience bewildered."

5. Petrichor - (noun) - The pleasant, earthy smell that comes after a fresh rain. 

6. Overmorrow - The day after tomorrow.

7. Glabella - The space between your eyebrows.

8. Ereyesterday - This word is used to describe the day before yesterday.

9. Dysania - (adjective) This is used to describe the feeling of finding it difficult to get out of bed

10. Zephyr - (noun) - A gentle, mild breeze.

"They enjoyed the zephyr while having a picnic in the park."