The word ‘hero’ is a root word which means it does not have a prefix or a suffix.
You can add suffixes ‘oic‘ or ‘ism‘ to create the words ‘heroic‘ or ‘heroism‘.
You can use the prefix ‘un‘ to create ‘unheroic‘.
In this example we have the prefix ‘un‘ the root word ‘hero’ and the suffix ‘oic‘
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Overwhelmed, Assaulting, Commensurate, Beneath