The short answer to your initial question is no. The historical/etymological spelling of was , which is the expected form of the volitional, since the irrealis () stem of is . Regular sound change explains the rest: becomes .
The same story applies to the consonant-stem () verbs: the old spelling for was (as seen here) etc. However, something strange happened to the vowel-stem () verbs; instead of → → ** or → → **, these were replaced by the forms with we know today.