1. corroborate - verb to confirm; to back up with evidence
Corroboration– noun
Corroborative – adj.

2. amorous – adj. feeling loving amorously – adv. amorousness - noun

3. decorous – adj. proper; in good taste
decorously – adv. decorousness - noun

4. To speed up the progress of expediter - noun
expedite - verb
To speed up the progress of
expediter - noun

5. to hint at what is to come; to present an indication of beforehand
foreshadow - verb
to hint at what is to come; to present an indication of beforehand

6. Affixes
Prefix: inter Meaning: between, among Examples: interact, interchange Suffix: -ful Meaning: full of; changes words to adjectives Examples: cheerful, helpful, thankful