Lewis Short
(verb) : ob-torquĕo, si, tum, 2
* To turn towards; to turn: obtorque prorim, Att. ap. Non. 200, 33 (Trag. Rel. v. 575 Rib.): dextrasque obtorquet in undas Proram,Stat. Th. 5, 414.
* To turn round, twist, writhe, wrench (esp. the neck; rare, and class. only in the part. perf.)): collum,Aur. Vict. Vir. Ill. 66: obtorto collo ad praetorem trahor,i. e. dragged violently by the throat,Plaut. Poen. 3, 5, 45; id. Rud. 3, 6, 16: ut illum collo obtorto ad subsellia reduceret,Cic. Clu. 21, 59 (for which: torquere collum,Liv. 4, 53, 8): obtorta gulā in vincula abripi jussit,by the throat,Cic. Verr. 2, 4, 10, § 24: obtorto valgiter labello, twisted, contorted, Petr. Fragm. ap. Fulg. p. 566, 2: obtorti circulus auri,twisted, wreathed,Verg. A. 5, 559: cardines,App. M. 3, p. 151, 22.
Charlton T. Lewis, Charles Short, A Latin Dictionary