bistro
bistro eatery
mighty
Dainty.
Firkin, which is a small barrel.
runnel
It is sometimes called pianoforte.
Peapod
commit
There is no 6-letter word that stores bile. There is however the gallbladder. This organ is what secretes bile in order to digest fats in the small intestine.
The most common is the word little (small). Another, which suggests very small size, is minute (my-NYOOT).
little
The only 6 letter word ending in 'heh' is Akcheh, which is a small Turkish coin.