The paper aims to provide an answer to the question whether the plural forms of the noun 'ryzyko' - traditionally classified into the category of 'singularia tantum' - present in the texts, reflect common or incidental use. The analysis was based on two largest corpora of the Polish language: the PWN Corpus of Polish and the IPI PAN Corpus of Polish. Although conclusions drawn from it are unequivocal, the corpus material shows a clear linguistic tendency. It thus seems that information on the atypical use of the word 'ryzyko' should be included in contemporary Polish dictionaries.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.