Do you notice anything interesting about the spelling of the two words below?

Question

facetiously and abstemiously

Answer 1

They go a e i o u

and that is cool.

Answer 2

They both use all the vowels in alphabetical order. They also don't duplicate any letters.

Answer 3

is it that they have all the vowels in the correct order?

Answer 4

They both end in "iously" but to me that is not interesting at all.  That vowel thiing is not the least bit interesting to me either.  Gives me a headache.

To me, any word over two letters is a strain.

Answer 5

the vowels (a-e-i-o-u-y) are all there, in order.