Lewis & Short

coctĭlis, e, adj. [coquo],

  1. I. burned: lateres, Varr. R. R. 1, 14 fin.: laterculus, Plin. 7, 56, 57, § 193; Curt. 5, 1, 25: muri (Babylonis), built of burned bricks, Ov. M. 4, 58; cf. Curt. l. l., and Just. 1, 2, 7 (cocto latere).
  2. II. Subst.: coctĭlĭa, ium, n. (sc. ligna), very dry wood, that burns without smoke (cf. acapnos), Treb. Claud. 14; cf. Dig. 32, 55, § 7.