credulous

Locuple-bloody-what?! You spent our honeymoon money on a get-rich-quick potion? You credulous fool! Are you out of your mind?!

credulous

(adj) having or showing too much readiness to believe things.

"The guppy, which we know of as a small tropical fish, is capable of growing to the size of a small horse, given enough space," said Enoch the aquarium guide. His audience of twelve year olds looked on incredulously. But credulous little Emma began making plans to turn the family swimming pool into a giant guppy breeding pond.

locupletative

The room went silent after a communal gasp. Francis slapped his hand over his mouth as he realised what he'd done. He'd spent too much time at boarding school and was not fit for polite company. Looking at the stunned faces in front of him, Francis knew he'd never been forgiven for his outburst of locupletative expletives.

locupletative

(adj.) tending to enrich

Brumhilda bites suspiciously into the silver coin before handing over a vial of her extra-strength locupletative potion. "Work? Does it work?" she echoes in a voice like honey with lumpy bits of offal in it, "Hah! What does it look like, boy?" She fishes a bulging coin pouch from within her voluminous skirts and, cackling wildly, deposits the silver coin with a clink and a wink.