A word beginning with R for sleep is rest.
sleep
This could be dysfunctional, disadvantageous, disposable, dispensable, defunct, discarded, doomed, dead.
There are none. However, "ax" can be considered a synonym of sword, and the second letter is an x. There is also "excalibur."
move
recover
Haughty is another word for arrogant that begins with the letter H.
Another word for registered voters that begins with the letter C is constituents.
Unusual is another word for interesting.
atrocious
annoying
Isle
A four letter word for poverty is need.
strenutation
Comradehip is another word for friendship.
eager
one is advocateannounce
Amused Amazed