YELLOW

GREEN

PURPLE

RED

adding the -shun suffix (-ssion)

 dis- mis- and un- prefixes

admission

permit

permission

confess

confession

impress

impression

discuss

discussion

obsession

possess

possession

depression

progression

discussion

procession

express

expression

disbelief

discontent

disagreement

misfortune           

miscalculate

unusually         

unhappiness       

unstoppable

unlikely

disadvantage      

disagreeable 

miscalculation         

miscellaneous   

misbehaviour  

misinterpretation

unauthorised        

unintentional       

unreliable