Clerkly was a close contender, but clerkly looks better to me with a lowercase c than an uppercase one. It's best if the word is appealing regardless of an initial capital letter.
What do the two finalists have going for them? Horsy is a prime example of the elasticity and suggestiveness of language. Tripoly includes the word poly (as in roly-poly) and has the good fortune of being embedded in a single sentence the character count of which, including spaces, is 889. A sentence of this length is as pretty as the Empire State Building lit in Steinbergian orange.
|public garden, Paris circa 1930|
Copyright © AFP / Harlingue / Collection Roger-Viollet
via Catwalk Yourself