Lewis & Short

blĭtum, i, n. (blĭtus, i, m., Pall. Mart. 9, 17: blitus seritur is written prob. from the corrupted or misunderstood blitūseritur, or perh. the obscure blitus eritur of the MSS.), = βλίτον, a vegetable, in itself tasteless, but used as a salad, orache, or spinach: Spinacia oleracea, Linn.; Plaut. Ps. 3, 2, 26; Varr. ap. Non. p. 550, 15; Plin. 20, 22, 93, § 252; Pall. Mart. 4, 9 fin.; Paul. ex Fest. p. 348 Müll.; Isid. Orig. 17, 10, 15.