Acceso usuarios
Manuel Fernando Pérez Lagos 
This work analyses the productivity of the hiper- and hipo- prefixes included in the Real Academia Española dictionary and in VOX'S general dictionary throughout their last five editions (halfs century of lexicographical creation). Appendix I offers each one of the words formed with these prefixes, followed by the editions in which each one appears. The organization of this material in appendix II may be used to find which words have appeared in each new edition and to compare both editions and dictionarics.
