Prefix is word or group of words added to the words to change the meaning the words and Suffix is a word or a group of letters that is usually added onto the end of words to change the way a word fits into a sentence grammatically.
this app will help you recognize roots in the english language to learn originals words in english language.
application characteristics :
list of the most common prefixes
metric system prefix
Big List of prefix and suffixes with examples and meaning to learn origin lettres in english language.
In Prefixes and Suffixes & Root Word 1.0