1. Agastopia – Admiration of a particular part of someone’s body.
2. Ombrophobia – Fear of rain. 
3. Halfpace – A raised floor or dais or a platform or footpace at the top of steps .
4. Phonophobia – Fear of sound.
5. Impignorate – A pledge, pawn, or mortgage. 
6. Numerophobia – Fear of numbers.
7. Jentacular – Pertaining to breakfast.
8. Consecotaleophobia – Fear of chopsticks. 
9. Nudiustertian – Not comparable, rare, obsolete, modern uses probably humorous; Of or relating to the day before yesterday; very recent.
10. Myrmecophobia – Fear of ants.
11. Quire – Four sheets of paper or parchment folded to form eight leaves, as in medieval manuscripts.
12. Aerophobia – Fear of fresh air.
13. Yarborough – A hand with no card above a nine. 
14. Alektorophobia – Fear of chickens or hens. 
15. Tittynope –  A small quantity of anything left over.

Citations:

https://www.prevention.com/health/mental-health/g20158616/weird-phobias/?slide=2

https://culturesconnection.com/unusual-words-in-english/

https://englishlive.ef.com/blog/language-lab/many-words-english-language/