Rhythm = contains six letters and the only vowel in this word is the "y".
apple
Tycoon
Rhythm
A 6 letter word for apportion is.....parcel
Beetle is a 6 letter word that has 'e' as the third letter.
apple
rhythm
little
Can't get a 7 letter word with only 6 letters. The 6 letter word is DESIST.
asthma
6 (y is a vowel in this word)
paraphernalia
Unusually
if you only consider the vowels to be aeiou, then the answer is that you have a 5 out of 26 (or .19%) chance.
There is no 8-letter word that can be made, there are these 7 and 6-letter words though:senegasagenesagonesgenoasgnosesgossanseasonsegnossenega
Tycoon
Normally 5/26 but if you count "y" as a vowel, 6/26 or 2/13.