Affixes
Overview Affixes are one of Esperanto's most powerful features. A single set of 9 prefixes and 18+ suffixes allows you to derive thousands of words from a smaller set of roots. Crucially, these affixes are themselves roots — they can stand alone as words when given an appropriate ending. Example of productivity: From the single root labor- (work): labori (to work), laboro (work/n.), labora (working/adj.), labore (laboriously) laboristo (worker), laborejo...