No, excitingly is one word so you would not use a hyphen in it.
The word excitingly is an adverb. It means to do something in an exciting manner.
The dictionaries that list it use a hyphen.
It's not a word in the dictionary, so yes, use the hyphen.
no
You do not use a hyphen when writing square feet. Using a hyphen would make it one word which should not be the case.
Yes, you can use a hyphen in a three-syllable word to separate its component parts or to indicate a compound adjective.
A hyphen is a "dash" that we use to put a compound word together. Such as 24-hour clock or 42-foot.
excitingly He excitingly told me about his new bike.
Stepmother is one word. So, you do not have to use a hyphen. Similarly: stepfather, stepsister, etc.
No. that is the way it is spelled: postpone.
No. Neither overemphasize or overemphasis use hyphens.
No. Through common usage, the words inpatient and outpatient no longer use the hyphen that characterized early spellings.