Natyashastra
कम्पनं वलनं चैव स्तम्भनोद्वर्तने तथा । निवर्तनं च पञ्चैतान्यूरुकर्माणि कारयेत् ॥ २५२॥
Shaking (kampana), turning (valana), motionlessness (stambhana), springing up (udvartana), and turning round (nivartana)—these five are the movements (karmāṇi) of the thighs (ūru) to be employed ॥ in dramatic performance॥.
english translation
kampanaM valanaM caiva stambhanodvartane tathA । nivartanaM ca paJcaitAnyUrukarmANi kArayet ॥ 252॥
hk transliteration by Sanscript