sentences:  Back to England, Lane continued to work on the dictionary with zeal, complaining that he was so used to the cursive calligraphy of his Arabic manuscripts that the Western print strained his eyes.He had arrived at the letter Qāf, the 21st letter of the Arabic alphabet, when he died in 1876.Lane's lexicon is based on medieval Arabic dictionaries plus the dictionary "Taj al-ʿArus" ("Crown of the Bride") by al-Zabidi which was completed in the early 19th century.