 Let's analyze dispiritedly. Clearly, the base form is spirit, which is of course a noun. In order to attach the verbal suffix ED, this noun has to be converted into a verb first. And now the verbal affix ED can be attached, so spirited is the new word form and it is a verb too. Let's now attach the prefix DIS, which, like many other present-day English prefixes, has no inherent word class. It can be attached to all sorts of elements, to nouns as in disadvantage, to verbs as in display, and to adjectives such as dishonest. So we label it with a question mark and dispirited remains a verb. Now we have to attach LY, which turns adjectives into adverbs. Thus, LY has the inherent word class adverb. However, we can only attach LY to adjectives. Thus we have to convert dispirited into an adjective first and can then generate the new word form dispiritedly, which is of course an adverb. The morphological processes involved can easily be described. Spirit is the base form, ED is an inflectional process and the remaining affixes form derivatives. Note that twice we have examples of conversion. And the morphological operations? Well in all three cases we have an operation of affixation.