Jastrow, קַרְדּוּ II 1

קַרְדּוּ II pr. n. pl. Ḳardu in Babylonia (cmp. Kardunias, Schr. KAT², p. 348; KGF, p. 534). B. Bath. 91ᵃ עשר … ושבע בק׳ (Ar. בכַרְדּוּ) Abraham was ten years in prison, three in Cuthi and seven in Ḳardu; Yalk. Gen. 77 בקדרו; Pirké d’R. El. ch. XXVI קרדי.—Yeb. 115ᵇ קוּרְטְבָא.