Feliz is Spanish for happy and is on the Sad avatar.
Azul is Spanish for blue and can be blue.
Remember the error Quell? The word Quell meaning is close to the meaning of the word prevent.
Error Poera almost rhymes.
Error Troit: There is a green troit named Error.
Knutt looks like a squirel and is pronounced Nut the kind of food a squirel eats.
Yuni sounds like uni the beginning of the word Unicorn (and looks like a Unicorn a bit).
Zoinks look like pigs take out the Z you have Oink the sound a pig makes.
Daisys come from the Undying Festival, ever heard of the phrase when a person dies "Pushing up Daisies"?
Rofling

Rolling
On
Floor
Laugh
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