Natyashastra
नितम्बपार्श्वोद्वहनात् शनेइरुद्वाहिता कटी । कटीकर्म मया प्रोक्तं विनियोगं निबोधत ॥ २४९॥
"The waist (kaṭi) is termed Udvāhitā (raised) when it is raised slowly by the sides of the hips or buttocks.
english translation
nitambapArzvodvahanAt zaneirudvAhitA kaTI । kaTIkarma mayA proktaM viniyogaM nibodhata ॥ 249॥
hk transliteration by Sanscript