Natyashastra
निहञ्चितं परावृत्तमुत्क्षिप्तं चाप्यधोगतम् । लोलितं चैव विज्ञेयं त्रयोदशविधं शिरः ॥ १८॥
Nihañcita, Parāvṛtta, Utkṣipta, Adhogata, and Lolita are to be understood as well, making the head gestures of thirteen kinds.
english translation
nihaJcitaM parAvRttamutkSiptaM cApyadhogatam । lolitaM caiva vijJeyaM trayodazavidhaM ziraH ॥ 18॥
hk transliteration by Sanscript