Sentence:  Usually some old crone was squatted on the earth floor, weaving cedar fibre or tatters of old cloth into a mat, her claw-like fingers <WSD>twining</WSD> in and out, in and out, among the strands that were fastened to a crude frame of sticks. 
Meaning of the word marked with <WSD> tags:  To mutually twist together; to become mutually involved; to intertwine.