"Amuse" is a hard one. I came up with Ensosinsedrem. (Ensosin se drem). Meaning "bewitchment of peace"  I don't think it's the best but it's what I came up with.

Unfortunately I couldn't come up with anything for "Again". 

vokrii vahrukt is restore memory - depending on the context, maybe this will work for again or vokrii us - restore before. I hope this helps

Some of us use "mey" lit. "Fool" for fun\humour although you might also say "drun voso" "bring joy". For again there often isn't anything but "med us"\"ol us" "like before"\"as before" can work in some contexts.