This work is about derivational suffixes, endings and prefixes of the Spanish language, which are useful for the establishment of about 70 000 suffixal and 11 000 prefixal extended morpholexical relationships deduced from a corpus of 134 109 canonical forms. A computational tool is developed capable of solving and answering to any morphological aspect of a Spanish word. The tool encompasses everything related with derivation, prefixation and other nearby aspects. It allows the recognition, the generation and the manipulation of morpholexical relationships of any word and of its related words, includes the recovery of all its lexicogenetical information until arriving at a primitive, the management and the control of the affixes in the treatment of its relationships, as well as the regularity in the established relationship.