con·tort 
(kən-tôrt)
(kən-tôrt)v. con·tort·ed, con·tort·ing, con·torts
v.tr.
1. To twist, wrench, or bend out of proper or natural shape: fingers contorted by arthritis. See Synonyms at distort.
2. To cause to deviate from what is normal, proper, or accurate: The leaders of the movement contorted their own principles in trying to get what they wanted.
v.intr.
To become contorted: "Her face contorts with pain and horror, as if something deep inside her has been shattered" (Rachel Simon).
[Latin contorquēre, contort-, to twist : com-, intensive pref.; see COM- + torquēre, to twist; see terkw- in the Appendix of Indo-European roots.]
con·tortion n.
con·tortive adj.