come away—
1. become detached from smth.:
- I pulled the rotten wood and it came away without difficulty.
2. leave a place or the company of others:
- We came away with the uneasy feeling that all was not well with their marriage.
go away—
1. = come away 2:
- His manner became so repellent that visitors went away moralizing on the absurdity of nouveaux riches….
2. (imper.) is used to rudely tell a person to be off:
- I’m tired of your constant complaints; go away and leave me in peace.
3. (of a newly-wed couple) leave the wedding guests and go on one’s honeymoon:
- Mary bought a very smart outfit to go away in.