ox - oxen (child - children). That is about the lot.
The suffix -en in words like "broaden" and "widen" indicates a process of making something more broad or wide. It transforms the base word into a verb, indicating the action of expanding or increasing in size or scope.
A lot of words can have the suffix ending; en. Here are some examples: beaten bitten chosen eaten oxen
'En' is a suffix, so it does not have a designated root word by itself. Words with 'en' are listed below, the root words italicized.WoodenStolen
Words that end with 'en':brightenlightenheightenabdomenwomenalienAmenawakenforsakenbadmenbefallenchosencitizenclubmancoachmencraftsmendampendeependarkendenBenmendoormendozendrivendrunkeneateneighteenelevensevenfallenfastenforbiddenforgiven
Slacken, fallen, strengthen, redden, enliven are words that end with en.
To cause to be or to become
En is the suffix of enjoy
Listen.
there is no suffix in the word "remake". There is however a prefix, which is "re", to do over again.
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You could add the prefix en- and the suffix -ment to it to make the word enforcement.