A tagset is a list of part-of-speech tags (POS tags for short), i.e. labels used to indicate the part of speech and sometimes also other grammatical categories (case, tense etc.) of each token in a text corpus.
Greek INTERA tagset
Greek INTERA part-of-speech tagset is available in Greek corpora annotated by the tool TreeTagger trained on the INTERA corpus. TreeTagger was developed by Helmut Schmid in the TC project at the Institute for Computational Linguistics of the University of Stuttgart.