Władysław I the Elbow-high of Kujawy, however, as he had two older half-brothers from Casimir’s second marriage to Constance of Wrocław: Leszek II the Black ("Leszek Czarny") and Ziemomysł. He was named after his uncle, his mother's brother Władysław, Duke of Opole. Already in contemporary sources he was nicknamed ""Łokietek"", a diminutive of the word "łokieć". It translates as "elbow" or "ell" – a medieval unit of measure similar to a cubit, as in "elbow-high". The origin of this nickname, as resulting from Władysław’s short stature, was explained only in the 15th century by historian Jan Dlugosz. In 1267, when Władysław the Elbow-high was
Yup'ik clothing joint of the index finger curled up with section from tip to first joint along inner edge of thumb; "qerruuner" (in Cup'ig) measurement from fingertip to armpit or chest; "quruner" (in Cup'ig) measurement from fingertip to the armpit or chest; "tallineq" (in Yup'ik) measurement from one's fingertips to his armpit with the arm (and hand) outstretched; "'tallinin" (in Yup'ik) measurement from the extremity of one’s fist to his armpit with the arm outstretched; "taluyaneq" (in Yup'ik) measurement, the distance from the folded elbow of one outstretched arm to the ends of the fingertips of the other outstretched arm; "teklin" (in