I always laugh about these names. They sound so funny:

Butteräugli = little butter eye

Brötli = little bread roll

Zöpfli = little plaited buttery bread

Gipfeli = little croissant

Güetzli = little home-made cookie

And they even look more funny without the umlauts. They seem a little bit broken without them. Therefore:

Brotli = little bread roll but slightly damaged

Zopfli = little plaited buttery bread but slightly damaged

and so on. But this is only my personal impression.