enhance:

heighten, increase; especially : to increase or improve in value, quality, desirability, or attractiveness

how to use in casual conversation:

"this WOTD enhances my desire to write a letter to MW about their shabby word-sleuthing"

"the WOTD is supposed to enhance your vocabulary"

"the only thing that could enhance the crappiness of this WOTD is if MW had slipped it into a phrase"

not to be confused with:

entrench

how it makes me feel:

i do not feel enhanced. the only thing enhanced this morning is my desire to make fun of MW. MW's ability to affect a wider audience of word-loving geeks could be enhanced by them not using everyday words as WOTDs. how will we further be enhanced from here? will they enhance our mental word banks with the word "four"?

four: an enhanced version of the number three.

or better yet, maybe they'll enhance their site with a new "linking verb of the day" or LVOTD:

aren't: an enhancement to ain't.

perhaps tomorrow they will enhance their reputation and give us something worthwhile, like they did yesterday. ahh, yesterday, when they enhanced us so.

ok i'll stop.

editorial note:

the dictionary.com entry for today is worth checking out.