The author described structure and history of 7 Old Polish names of people who participated in legal tussles, names based on Preslavic verb ' *per-ti', such as: 'pierca pierzca 1399', 'sapierz 1409', 'sporca 1449', 'odporca 1460', 'porca 1460', 'sapierca 1460', 'wsporca 1460'. The article continues the treatise that dealt with names of legal tussles and trials based on verb '*per-ti'. 'Sapierz' is the oldest name, found also in other Slavic languages. These words vanished in the 16th century, because of their ancient structure (sapierz) or frequent polisemy (pierca, sapierz), and were replaced by native monosemic syntactic derivatives and their elliptic continuants (powód, powodna persona, pozwana persona, pozwany), or - less frequently - by borrowings (prokurator).
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”.