Sounds Right: Highlighted Words

This is clearly subjective, but some words really sound like the thing they describe (personal favourites: puffin; bulbous; fidgeting). Do you have an example of such a word (or, alternatively, of a word that sounds like the exact opposite of what it refers to)? What do you think creates this effect?

Words that come and go in the night.

Words that highlight the light.

And words that sound just right.

Or not.

What creates this effect?

Do they sound alright only in hindsight?

Or were they coined so?

To make you want more.

Do you and I really know?

Take ‘frumpy’.

That sounds quite ‘dumpy’.

But not ‘chumpy’ or chummy.