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This page provides a German full form dictionary with about 90,000 base forms and 431,000 full forms (inflected forms). Each full form comes with full morphological information.

• full form dictionary 2011-07-22 (25MB, encoding: UTF-8) (original version from Morphy without extensions). Here's an example of the XML format:

  <item>
    <form>Autos</form>
    <lemma wkl="SUB" kas="GEN" num="SIN" gen="NEU">Auto</lemma>
    <lemma wkl="SUB" kas="NOM" num="PLU" gen="NEU">Auto</lemma>
    <lemma wkl="SUB" kas="GEN" num="PLU" gen="NEU">Auto</lemma>
    <lemma wkl="SUB" kas="DAT" num="PLU" gen="NEU">Auto</lemma>
    <lemma wkl="SUB" kas="AKK" num="PLU" gen="NEU">Auto</lemma>
  </item>

  This means that the full form "Autos" is a neuter (gen="NEU") noun (wkl="SUB") that has five different readings: singular genitive (kas="GEN") and plural nominative, genitive, dative, and accusative (kas="NOM" etc). The lemma (base form) of each reading is "Auto". The tags' full documentation can be found in the Download section on the Morphy homepage.

  This version has been extended to contain variants introduced with the German spelling reform of 1996, mostly affecting a lot of words with "ß" that are now to be spelled with "ss" (e.g. Kuss instead of Kuß).

• lemmatizer data as csv file (1.2MB): a list of all full forms mapped to their base forms. Examples: Autos -> Auto, absahnte -> absahnen, minutiösem -> minutiös
  You can import this data into a MySQL table called 'word_mapping' with two VARCHAR columns like this:

  LOAD DATA LOCAL INFILE '/path/to/morphy-mapping-20110717.latin1'
  REPLACE INTO TABLE word_mapping
  FIELDS TERMINATED BY '\t';
          

Contact me at naber(at)danielnaber.de if you need help.

The data is originally extracted from Morphy, a Windows software from the 1990s.

Published under Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0).

Related data and software:

• German compound splitting using jWordSplitter, a simple Java library
• OpenThesaurus, a German synonym dictionary