Natyashastra
संस्थिते तार्के यस्याः स्थिता विकसिता तथा । सत्त्वमुद्गिरती दृप्ता दृष्टिरुत्साहसंभवा ॥ ६०॥
Dṛptā: The steady and widely opened Glance in which eyeballs are motionless, and which shows forth (lit. emits) prowess is called Dṛptā (haughty); it is used in showing energy (lit. grows out of energy).
english translation
saMsthite tArke yasyAH sthitA vikasitA tathA । sattvamudgiratI dRptA dRSTirutsAhasaMbhavA ॥ 60॥
hk transliteration by Sanscript