Actually, just: echo $(shuf -n4 /usr/share/dict/words) will do the trick. Though it does have some weird words in there. A trimmed "4000 common words" diction

Actually, just: echo $(shuf -n4 /usr/share/dict/words) will do the trick. Though it does have some weird words in there. A trimmed "4000 common words" dictionary is what I use.