Lewis Short
(verb) : sēmustŭlo (sēmĭ-ustŭlo, -tĭlo, v. Beier ad Cic. Tull. p. 33, a.;
* Cod. Erf. has semiustilo,Cic. Mil. 13, 33), no perf., ātum, 1, (only in part. perf. and fut.), to half burn, to burn in part: infelicissimis lignis semustulatus,Cic. Mil. 13, 33: faces mcendisti, quibus semustulatus ille est,id. Phil 2, 36, 91: semustulatus effugit,id. Tull. 18, 33; Varr. ap. Non. 263, 21: pauci semustulati venere in potestatem,Curt. 6, 6, 32: corpus in amphitheatro semustulandum,Suet. Tib. 75 fin.; cf. semustus.
Charlton T. Lewis, Charles Short, A Latin Dictionary