(Latin: betrothed man, groom; betrothed woman, bride; both come from sponsus, past participle of spondere, "to promise, betroth" from Old French, espous [masculine, male]; espouse [feminine, female])
2. A support expressed in favor of an idea or an action regarding a proposal of something: Jim's espousal was to keep his old car because it was still performing very well and so he decided not to waste so much money to buy a new one.
The computer programmer espoused an easy way to utilize the functions of the new web site.2. To unite in marriage or to become married: George has espoused Marge as his wife.
Go to this Word A Day Revisited Index
so you can see more of Mickey Bach's cartoons.
Quite often, an espouser is someone who "marries" an idea, or principle, and embraces it as his or her own.
There are also espousers who join others in conservation or other environmental causes which need attention for better living conditions for humans and other creatures.