Lecha od nakshivah [A continuation of Athith ad dodim, kerovah by Kalir for Shabbath Ha-Chodesh, the Sabbath preceding the New Moon of Nissan]. First word in each stanza historiated

This “kerovah," as it is known, was composed by the famed Kalir (R. Elazar Kalir). The poem occurs only in the Aschkenazic rite. See Davidson, Thesaurus of Mediæval Hebrew Poetry (1970) I, p. 403 (no. 8904)