7.1.1 युवोरनाकौ
पदच्छेद : यु-वः अन-अकौ
अनुवृत्ती : अङ्गात्
Physical : अङ्गात् यु व अन अक
अङ्गात् = here periphery move untill that
यु = connect outward
अन (becomes) pull here
व = wave
अक becomes here hand held (( in context of obtain by wave movement)) OR here stone (in context of wave as in wave of sea/vibrating movement against which precaution is needed)
commentary
when there an an outside movement (अङ्ग), connect outward/make connect becomes pull here AND wave becomes hold here.