New Vocabulary of 2012--Some strange, some useful

Here, I have included some of the best and most puzzling words I came upon in 2012...See how many you recognize, and as always, feel free to comment with your reactions and/or additions! 

- Exiguous 
- Bucolic 
- Mendacious 
- Frowzy
- Avuncular 
- Sedulous 
- Macerate 
- Rictus 
- Volar 
- Jalouse 
- Bibulous 
- Nascent 
- Panacea 
- Nostrum 
- Paucity