In English ,words that are made from the same root by adding different suffixes or negative prefixes called "world families". (Adding other prefixes to roots makes bigger changes in meaning. The words are still related, but not as closely.) Below is an example-- the word family 'act.'A Word Family: ActVerbs : act ,activate ,actuate,deactivateNouns :act,action,activation,activity,actor, actress,deactivation,inaction,inactivity Adjectives:actionable,activated,active,deactivated,inactive Adverbs:activelyRelated families with the same root and suffixes(This list shows only the most common forms. Parts of speech aren’t noted-- they are the same as for the suffixes above)counteractenacthyperactive, hyperactivityinteract, interaction, interactive, interactively, interactivityoveractiveoverreact,...