Рядна, -ної, ж. Условіе, договоръ. На корогвах уговір-рядну писали. Дума. https://www.google.com.ua/imgres?imgurl=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F5%2F53%2F%25D0%259A%25D0%25B0%25D0%25B7%25D0%25B0%25D1%2586%25D0%25BA%25D0%25B8%25D0%25B9_%25D0%25BC%25D0%25BE%25D1%2580%25D1%2581%25D0%25BA%25D0%25BE%25D0%25B9_%25D1%2584%25D0%25BB%25D0%25B0%25D0%25B3_%25281734-1775%2529.PNG&imgrefurl=https%3A%2F%2Fuk.wikipedia.org%2Fwiki%2F%25D0%259A%25D0%25BE%25D1%2580%25D0%25BE%25D0%25B3%25D0%25B2%25D0%25B0&docid=IJ9XXcp8oiYemM&tbnid=lX1qd4QmYI8aoM%3A&vet=10ahUKEwiK_b2x7NbeAhUJDiwKHYJNCJ4QMwg9KAAwAA..i&w=772&h=583&bih=626&biw=1366&q=%D0%9D%D0%B0%20%D0%BA%D0%BE%D1%80%D0%BE%D0%B3%D0%B2%D0%B0%D1%85%20&ved=0ahUKEwiK_b2x7NbeAhUJDiwKHYJNCJ4QMwg9KAAwAA&iact=mrc&uact=8