contort (v.)

"to twist or wrench out of shape," early 15c. (implied in contorted), from Latin contortus, past participle of contorquere "to whirl, twist together," from assimilated form of com- "with, together," here perhaps an intensive prefix (see com-) + torquere "to twist" (from PIE root *terkw- "to twist"). Related: Contorting.