Words in common

Posted by R. Berg on February 01, 2005

In Reply to: Words in common - help me with trivia posted by Laura on February 01, 2005

: Besides all ending in the letter "y" what do the words decay, enemy, essay, excellency, expediency and ivy have in common?

: Math class trivia

: my thoughts - all are nouns or can all the words also be used before or after the word "common"?
: Such as common enemy, common ivy

"Common" can't be the answer; it doesn't go with all of them.